Entre no painel de seu blog clique em design, editar html, clique para expandir modelos de widgets e procure por:
data:blogCommentMessage

Visualize isso

<h4 id='comment-post-message'><data:postCommentMsg/></h4>

Cole o seguinte código abaixo

<div style=' width: 370px; text-align: left; border: 2px solid #0084ce; background: #FEF9EA; padding: 10px; color:#0084ce; font-weight:bold; '>
<img border='0' src='https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiHKP71XySZZEhhX6ToDmjeiBrHQR38heO_ndauKBVstIcLQpcKqELPYl8nLMmoZpSPod4Uv3Tsp1GhVmJpsyJVmR9UnbezfAmwNRD4ilXk_1wO-vs6E4iYDmZ_w4eYHSaveLDCBu7zzJ8/s800/emoticon-0100-smile.gif'/> :a
&#160;
<img border='0' src='https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgsBNCSvP3S0Qnj5yRIdHwx5MiUeEv6Hk0mS_HdYNFWgo_fGFC_tVOTtvfdHNs-XiEZmdx3ncai-tu36KXV4sD0PvDpIKGQoViShPSQjE9mUlRXMphQP_BMH6-XjilvUppLhn4_rIo7dkE/s800/emoticon-0101-sadsmile.gif'/> :b
&#160;
<img border='0' src='https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjDVQrep9QIvCwSbe-OAmYxwqYcc9oZRxEQ7B_kM6hc_zei0KEl_tjSI4K_bWgvhe7hg_9aQ-l2XfgSmZUq4Gg0umVHXK67umPM38A5p84uDeAFpJxqpkJgceh7U-E0omR7hqQu3CsLWEs/s800/emoticon-0102-bigsmile.gif'/> :c
&#160;
<img border='0' src='https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhKdrpMyJF1wMk1b3tvDHDD8JcYU54i5GpSsjQCJaiv9B1J5ABnUfedt6s2vp22XYadHqk3Z7tRu_epAx5m6s5ydfNnbIIJE4HKFZ7535YbTv5W9eKh6CqK6BlZgHYI3CvT5NdDNz6OIIQ/s800/emoticon-0105-wink.gif'/> :d
&#160;
<img border='0' src='https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjiqA7iyDYselw42IQ8lnKtwk5gH4B7lhzHR817vPmbIzbo6h8yqTDEv8no6oq-po-bB8-HaL10zz-cDvJkiwfc_MN9S6D__snyjlvPUpQNp_b0svNpnPNTMzXjIwDdvhCO0WQvSU4Q6Ts/s800/emoticon-0104-surprised.gif'/> :e
&#160;
<img border='0' src='https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiJNQdezIhOH7zfJSJkMZt5gIbhZQRmZL1Bxt02-jF5gn1Dyz8n7yzKcGhSw7rhr9Eepz_gItxrqr-Udu_tsF81DAFJNtML3QfFvc-ywVAvhBcZiiB6iUh6nvzYVZ2NKG2UTk4FSyX7WOE/s800/emoticon-0106-crying.gif'/> :f
&#160;
<img border='0' src='https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhYMc_5NcAp0Yqhbd64F2G2W5x2w1SKbNfBHmRIk02tBsfMyqO5ZoQMJypt72wnU-fnlcAihdFrVDuk8D6xbOd0O_2BjwbkrFzghyZKKNTlvj9I2YL0vi1bdM8fUhTpgJbRytkG_biqrhc/s800/emoticon-0109-kiss.gif'/> :g
&#160;
<img border='0' src='https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhUioyGNkmxWXvr4tImvgAMCW7VjE7yEhy_-PA2lmf1xGpsx00wEF6PRCVLLdaqDl3YqmzPR9rszZc-bLN0shOIrBpABpZ_F6uIammnW-2k8r0-UAyFYXVSge15DKeP2eXA6uF7Ul8778k/s800/emoticon-0111-blush.gif'/> :h
&#160;
<img border='0' src='https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjIWaIYw2BCnVW44bKoSTsJMQWMeavSZZTVYpuL_ACImJm7qNibz98IYMzbz3CeXJfUIxfA-68lDPzyUVipUFdS23nkg2GmmkhC5VWqbAWN433k_wOR-Vgkj86R2JognOGlt3chqT1TM5w/s800/emoticon-0110-tongueout.gif'/> :i
&#160;
<img border='0' src='https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgpThYVJOWXhGwERCWjvR9I6SybHK1lxNV7vtZ6dkgBD_FIyPmDpWpiwI4gKfI4Md6bH-3JwKK2gl2XxunXCr0dx3CdIXhh0svnrg06lr9ARiLfc9x8pxdiDeEmqvD_yxsRaJDTLVpwC90/s800/emoticon-0126-nerd.gif'/> :j
&#160;
<img border='0' src='https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEg8-d79JpMHd9xeCByBanCe3xFj8ESsQSkw53fpquw0KzD76DDC7Xzo2EC8C4U9OPLAs-6CZAfx9xLttCTq1F1l_5KdlEVWqw2L5lzJL23q5Oap5oQyy-P8w67nN6w1-1WrnYmqFPAAmS4/s800/emoticon-0103-cool.gif'/> :k
&#160;
<img border='0' src='https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjqNE9HjKEACuR6RoKy7jZktHaLI9aHXsNs3B4Ge8B0DLICspXyyOFspcolCBbAISPjlaJzB3d7ThHJWTCFrUrUsfA6gMzHS3xu_nO1FRyqhCUHhx1-Ostlw8E_IL7T7L_qD7uC1dsQdQY/s800/emoticon-0130-devil.gif'/> :l
&#160;
<img border='0' src='https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjTRG8OHIPj2aK8sTITcmuWWlmfJhNmg8kcC2n6Dt9Uxe0wbwSVyndic9W1fwSzBWMbZr8TYtbE5Y2WEsMZawla2bMV9hVdzGjBoXjzZSToymk4trmMzMl_Js8fN_BYlp5PCunQvRf6Pso/s800/emoticon-0133-wait.gif'/> :m
&#160;
<img border='0' src='https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEi6bLKMbsZ4SXc8688xAcYJhOfgjT9H1uRE7tN7nlh6u0U67bzu7S7B1C3ULkEiHlwo4XX44fRbc7ocXAp3BAISKkjqXLkAUbecCgUq4n0gEbmvNmjp9JERoIWT2cXlrN7H2fLKIO4WHkw/s800/emoticon-0137-clapping.gif'/> :n
&#160;
<img border='0' src='https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjCTWWjIWwhGIej9mJYrFfMCSmXQmL1aVcFpaHKrT4Sft2ABgAF-LvpLw-Hz4PzJ8Gqs5sVSkv0m1LpMUjV1lEpfpBTg79WvmEbXbk-VokL1_4NXA1fAmt4z37u3k1SPpmGFo42woePm3w/s800/emoticon-0136-giggle.gif'/> :o
&#160;
<img border='0' src='https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEj1PbzADEoFN4ynT3aAzXjjpMJMvB518fPTZpU7Ip3r7Yz6iUrQcrBe8j_3gs34a3A4kA04Jg8Lud-_nM64AgDkozrjJYi-O2rtBRcPYfKqTD_X2Os45siufBnRGQq5qkeZ17R77e7nw4Y/s800/emoticon-0141-whew.gif'/> :p
&#160;
<img border='0' src='https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEigTE8kCcEd0ug5JiQPY7PznqtVKOeb0Bjdngzhb_ZCiNGv0MP62PKY9yNjCTtWfmAjaqde4vPjc5u4f_TpJ_COB4MesDKTt6u7tfY9boKPJbWJXsEY3FoOKabKR7Mfvge8fzyAcnkJmFQ/s800/emoticon-0148-yes.gif'/> :q
&#160;
<img border='0' src='https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhyrA2dyzzWj-Dkj1v5dqz8qN7bUtgjNI464kn6VSsOGxvNZuN6q6wAa2Gp-tRkcTIaafeTMpZbZz2yRWY6MDgYVqm2_3LbH795NaLFqhe4QtbV1qGjmGUs1gx7R6pFcWJw8eKnvQsnUmg/s800/emoticon-0149-no.gif'/> :r
&#160;
<img border='0' src='https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgOB1YjJ2BxCnNU6eLw4B98dO4yM-QJ_ZlWeUbQtsQnd7DtVlciPiV-wKdTP2DrNVmjCiuyO2U3PnysyoV4I9wzkOAGUChOvvGvGbOt7jB7v-6fWu9KvJGjj3QfAQhiFPHzGOmlcDaZT_s/s800/emoticon-0178-rock.gif'/> :s
&#160;
<img border='0' src='https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiFeKH5b01rakpOhXacFHEzF6rSop2ytpDiLR3oy9vnFAHLDLvk9-3o-OcxpQPxEB4mTbVhPQxk99uilP7urTRFbJcrLWImOh83LI5KPvkywd381msGbOLBMhTBZR_CDv9bzAQGwi5CFGI/s800/emoticon-0155-flower.gif'/> :t
</div>

Clique para salvar

agora  procure por: </body> e coloque o seguinte código antes dele </body> :

<script type='text/javascript'>
//<![CDATA[
a = document.getElementById('comments');
if(a) {
b = a.getElementsByTagName("DD");
for(i=0; i < b.length; i++) {
if (b.item(i).getAttribute('CLASS') == 'Author-comment-body' , 'comment-body') {
_str = b.item(i).innerHTML.replace(/:j/gi, "<img src='https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgpThYVJOWXhGwERCWjvR9I6SybHK1lxNV7vtZ6dkgBD_FIyPmDpWpiwI4gKfI4Md6bH-3JwKK2gl2XxunXCr0dx3CdIXhh0svnrg06lr9ARiLfc9x8pxdiDeEmqvD_yxsRaJDTLVpwC90/s800/emoticon-0126-nerd.gif' alt='' class='smiley'/>");
_str = _str.replace(/:k/gi, "<img src='https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEg8-d79JpMHd9xeCByBanCe3xFj8ESsQSkw53fpquw0KzD76DDC7Xzo2EC8C4U9OPLAs-6CZAfx9xLttCTq1F1l_5KdlEVWqw2L5lzJL23q5Oap5oQyy-P8w67nN6w1-1WrnYmqFPAAmS4/s800/emoticon-0103-cool.gif' alt='' class='smiley'/>");
_str = _str.replace(/:l/gi, "<img src='https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjqNE9HjKEACuR6RoKy7jZktHaLI9aHXsNs3B4Ge8B0DLICspXyyOFspcolCBbAISPjlaJzB3d7ThHJWTCFrUrUsfA6gMzHS3xu_nO1FRyqhCUHhx1-Ostlw8E_IL7T7L_qD7uC1dsQdQY/s800/emoticon-0130-devil.gif' alt='' class='smiley'/>");
_str = _str.replace(/:m/gi, "<img src='https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjTRG8OHIPj2aK8sTITcmuWWlmfJhNmg8kcC2n6Dt9Uxe0wbwSVyndic9W1fwSzBWMbZr8TYtbE5Y2WEsMZawla2bMV9hVdzGjBoXjzZSToymk4trmMzMl_Js8fN_BYlp5PCunQvRf6Pso/s800/emoticon-0133-wait.gif' alt='' class='smiley'/>");
_str = _str.replace(/:n/gi, "<img src='https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEi6bLKMbsZ4SXc8688xAcYJhOfgjT9H1uRE7tN7nlh6u0U67bzu7S7B1C3ULkEiHlwo4XX44fRbc7ocXAp3BAISKkjqXLkAUbecCgUq4n0gEbmvNmjp9JERoIWT2cXlrN7H2fLKIO4WHkw/s800/emoticon-0137-clapping.gif' alt='' class='smiley'/>");
_str = _str.replace(/:o/gi, "<img src='https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjCTWWjIWwhGIej9mJYrFfMCSmXQmL1aVcFpaHKrT4Sft2ABgAF-LvpLw-Hz4PzJ8Gqs5sVSkv0m1LpMUjV1lEpfpBTg79WvmEbXbk-VokL1_4NXA1fAmt4z37u3k1SPpmGFo42woePm3w/s800/emoticon-0136-giggle.gif' alt='' class='smiley'/>");
_str = _str.replace(/:p/gi, "<img src='https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEj1PbzADEoFN4ynT3aAzXjjpMJMvB518fPTZpU7Ip3r7Yz6iUrQcrBe8j_3gs34a3A4kA04Jg8Lud-_nM64AgDkozrjJYi-O2rtBRcPYfKqTD_X2Os45siufBnRGQq5qkeZ17R77e7nw4Y/s800/emoticon-0141-whew.gif' alt='' class='smiley'/>");
_str = _str.replace(/:q/gi, "<img src='https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEigTE8kCcEd0ug5JiQPY7PznqtVKOeb0Bjdngzhb_ZCiNGv0MP62PKY9yNjCTtWfmAjaqde4vPjc5u4f_TpJ_COB4MesDKTt6u7tfY9boKPJbWJXsEY3FoOKabKR7Mfvge8fzyAcnkJmFQ/s800/emoticon-0148-yes.gif' alt='' class='smiley'/>");
_str = _str.replace(/:r/gi, "<img src='https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhyrA2dyzzWj-Dkj1v5dqz8qN7bUtgjNI464kn6VSsOGxvNZuN6q6wAa2Gp-tRkcTIaafeTMpZbZz2yRWY6MDgYVqm2_3LbH795NaLFqhe4QtbV1qGjmGUs1gx7R6pFcWJw8eKnvQsnUmg/s800/emoticon-0149-no.gif' alt='' class='smiley'/>");
_str = _str.replace(/:t/gi, "<img src='https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiFeKH5b01rakpOhXacFHEzF6rSop2ytpDiLR3oy9vnFAHLDLvk9-3o-OcxpQPxEB4mTbVhPQxk99uilP7urTRFbJcrLWImOh83LI5KPvkywd381msGbOLBMhTBZR_CDv9bzAQGwi5CFGI/s800/emoticon-0155-flower.gif' alt='' class='smiley'/>");
_str = _str.replace(/:s/gi, "<img src='https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgOB1YjJ2BxCnNU6eLw4B98dO4yM-QJ_ZlWeUbQtsQnd7DtVlciPiV-wKdTP2DrNVmjCiuyO2U3PnysyoV4I9wzkOAGUChOvvGvGbOt7jB7v-6fWu9KvJGjj3QfAQhiFPHzGOmlcDaZT_s/s800/emoticon-0178-rock.gif' alt='' class='smiley'/>");
_str = _str.replace(/:a/gi, "<img src='https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiHKP71XySZZEhhX6ToDmjeiBrHQR38heO_ndauKBVstIcLQpcKqELPYl8nLMmoZpSPod4Uv3Tsp1GhVmJpsyJVmR9UnbezfAmwNRD4ilXk_1wO-vs6E4iYDmZ_w4eYHSaveLDCBu7zzJ8/s800/emoticon-0100-smile.gif' alt='' class='smiley'/>");
_str = _str.replace(/:b/gi, "<img src='https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgsBNCSvP3S0Qnj5yRIdHwx5MiUeEv6Hk0mS_HdYNFWgo_fGFC_tVOTtvfdHNs-XiEZmdx3ncai-tu36KXV4sD0PvDpIKGQoViShPSQjE9mUlRXMphQP_BMH6-XjilvUppLhn4_rIo7dkE/s800/emoticon-0101-sadsmile.gif' alt='' class='smiley'/>");
_str = _str.replace(/:c/gi, "<img src='https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjDVQrep9QIvCwSbe-OAmYxwqYcc9oZRxEQ7B_kM6hc_zei0KEl_tjSI4K_bWgvhe7hg_9aQ-l2XfgSmZUq4Gg0umVHXK67umPM38A5p84uDeAFpJxqpkJgceh7U-E0omR7hqQu3CsLWEs/s800/emoticon-0102-bigsmile.gif' alt='' class='smiley'/>");
_str = _str.replace(/:d/gi, "<img src='https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhKdrpMyJF1wMk1b3tvDHDD8JcYU54i5GpSsjQCJaiv9B1J5ABnUfedt6s2vp22XYadHqk3Z7tRu_epAx5m6s5ydfNnbIIJE4HKFZ7535YbTv5W9eKh6CqK6BlZgHYI3CvT5NdDNz6OIIQ/s800/emoticon-0105-wink.gif' alt='' class='smiley'/>");
_str = _str.replace(/:e/gi, "<img src='https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjiqA7iyDYselw42IQ8lnKtwk5gH4B7lhzHR817vPmbIzbo6h8yqTDEv8no6oq-po-bB8-HaL10zz-cDvJkiwfc_MN9S6D__snyjlvPUpQNp_b0svNpnPNTMzXjIwDdvhCO0WQvSU4Q6Ts/s800/emoticon-0104-surprised.gif' alt='' class='smiley'/>");
_str = _str.replace(/:f/gi, "<img src='https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiJNQdezIhOH7zfJSJkMZt5gIbhZQRmZL1Bxt02-jF5gn1Dyz8n7yzKcGhSw7rhr9Eepz_gItxrqr-Udu_tsF81DAFJNtML3QfFvc-ywVAvhBcZiiB6iUh6nvzYVZ2NKG2UTk4FSyX7WOE/s800/emoticon-0106-crying.gif' alt='' class='smiley'/>");
_str = _str.replace(/:g/gi, "<img src='https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhYMc_5NcAp0Yqhbd64F2G2W5x2w1SKbNfBHmRIk02tBsfMyqO5ZoQMJypt72wnU-fnlcAihdFrVDuk8D6xbOd0O_2BjwbkrFzghyZKKNTlvj9I2YL0vi1bdM8fUhTpgJbRytkG_biqrhc/s800/emoticon-0109-kiss.gif' alt='' class='smiley'/>");
_str = _str.replace(/:h/gi, "<img src='https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhUioyGNkmxWXvr4tImvgAMCW7VjE7yEhy_-PA2lmf1xGpsx00wEF6PRCVLLdaqDl3YqmzPR9rszZc-bLN0shOIrBpABpZ_F6uIammnW-2k8r0-UAyFYXVSge15DKeP2eXA6uF7Ul8778k/s800/emoticon-0111-blush.gif' alt='' class='smiley'/>");
_str = _str.replace(/:i/ig,"<img src='https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjIWaIYw2BCnVW44bKoSTsJMQWMeavSZZTVYpuL_ACImJm7qNibz98IYMzbz3CeXJfUIxfA-68lDPzyUVipUFdS23nkg2GmmkhC5VWqbAWN433k_wOR-Vgkj86R2JognOGlt3chqT1TM5w/s800/emoticon-0110-tongueout.gif' alt='' class='smiley'/>")
b.item(i).innerHTML = _str;
}
}
}
//]]>
</script>

Clique novamente para salvar e depois é só fazer os testes, lembre-se que os comentários do blogger podem demorar uns minutos para aparecer, normalmente não demora, então se não aparecer na hora é normal, mas isso não quer dizer que deu errado, nos testes que fizemos demorou uns 2 minutos para ser visível o comentário com emoticons no blogger.
E o melhor de tudo sobre esses emoticons para colocar no blog é que você pode criar os seus emoticons facilmente, repare que os trechos que se repetem varias vezes:
_str = _str.replace(/:k/gi, "<img src='https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEg8-d79JpMHd9xeCByBanCe3xFj8ESsQSkw53fpquw0KzD76DDC7Xzo2EC8C4U9OPLAs-6CZAfx9xLttCTq1F1l_5KdlEVWqw2L5lzJL23q5Oap5oQyy-P8w67nN6w1-1WrnYmqFPAAmS4/s800/emoticon-0103-cool.gif' alt='' class='smiley'/>");
<img border='0' src='https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEg8-d79JpMHd9xeCByBanCe3xFj8ESsQSkw53fpquw0KzD76DDC7Xzo2EC8C4U9OPLAs-6CZAfx9xLttCTq1F1l_5KdlEVWqw2L5lzJL23q5Oap5oQyy-P8w67nN6w1-1WrnYmqFPAAmS4/s800/emoticon-0103-cool.gif'/> :k
&#160;
Cada um numa parte do código é repetido apenas trocando o endereço da imagem e o código para o emotion , portanto se trocar o endereço da imagem: https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEg8-d79JpMHd9xeCByBanCe3xFj8ESsQSkw53fpquw0KzD76DDC7Xzo2EC8C4U9OPLAs-6CZAfx9xLttCTq1F1l_5KdlEVWqw2L5lzJL23q5Oap5oQyy-P8w67nN6w1-1WrnYmqFPAAmS4/s800/emoticon-0103-cool.gif'

E o código :k irá criar um novo emoticon, apenas tome cuidado para não apagar nem colocar nada a mais no código e não usar o código de imagem repetido ou seja :k só poderá haver um deles, então escolha outros caracteres para ser o atalho para os novos emoticons.

BY: ﻹЯei$ Vipﻹ

GOSTOU COMENTE !