Replace the Default Anonymous Avatar on Blogger Comments
Step 1. Go to Dashboard - Template - click on the Edit HTML button
...click anywhere inside the code area and open the template search box by pressing the CTRL + F keys
Step 2. Type or paste this code in the search box, then hit Enter to find it:
</body>Step 3. Just above the </body> tag, add the following code:
<script src='http://code.jquery.com/jquery-latest.js'/>Step 4. Save the changes by clicking on the Save Template button
<script>
$("img[src='http://img1.blogblog.com/img/anon36.png']")
.attr('src', 'https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEj162fwOdOSNPeRLgEI-XCTOsIPoZTshdyz_DkvaXKheAJ1H8xty_XDnHyBWp6DNhJWCbeNsxz9pWnUdPulL93-kWTv-w4UpDc18Btx7mRaweoJWCiFmxD3R3x4UK4otIhq5LgyPOx4T2s/s1600/default_avatar.gif')
.ssyby('blank')
</script>
<script src='http://code.jquery.com/jquery-latest.js'/>
<script>
$("img[src='http://img2.blogblog.com/img/b36-rounded.png']")
.attr('src', 'https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhoMZlG501MtdVF_34hhZyOxMu8MWsi8UyPOYHxTASEV4Hy079XfPcA-dQ7iBaXsJMCvOhIV8bVniXEd54jKpURE2VhoSsbi6TxHPe3qZ8Jt0aCDDQkYsYO0Ckhpseete74DaLNjlOG9ug/s1600/blogger-user.png')
.ssyby('blank')
</script>
Changing the default avatar
For Anonymous users: Replace the code in red with your image addressFor Blogger users: Replace the URL in blue with your own.
You can choose an avatar from here and then copy the url of it:
https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEj162fwOdOSNPeRLgEI-XCTOsIPoZTshdyz_DkvaXKheAJ1H8xty_XDnHyBWp6DNhJWCbeNsxz9pWnUdPulL93-kWTv-w4UpDc18Btx7mRaweoJWCiFmxD3R3x4UK4otIhq5LgyPOx4T2s/s200/default_avatar.gif

https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgdURiuO36aU34LuDGM7Nn-1bXQkwg8_SckNdO3Y_Vx5aGTkdLqI7OXFl5l84n9f0USD4eBN8RHk7_7bIbfClUYkW-XEq6CoIsiLuFNNRQjlhQuT4RQGAAJW1honJ8Dr1ikZsWnSIH95qA/s1600/facebook.gif

https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEg2LNWlqDeXHMbsGkLis72JR1kHvVFKU4iGDxY-5tRrhh9J0fl6MefyTKNQ4mNszXr8CJx4SDFrKjUDmqbUeNBQdYIMcIhke75H4-0cDRvz9hN03qmFS1EeTqZ4adpCQFTGRLj75QjSOMg/s1600/anonymous3.png

https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhhdE23i6nSNmwqHB4dEWyASRy_sd5tkiNkxzh4_I9b0Q2L4fSLyh976q21mFpfrzRP22FKd-NRUng3tIRezu5Lh6fJ-7Hke-7v41d_yQRc3xLM5SAArJpAZ-O-As4K2teMT2AZroyy3x8B/s1600/blogger-user.png
That's it! If you found this trick useful, please consider sharing it.
