brahmnan

If you want user avatars to be displayed quickly and do not use external services, the module for generating “identicon” avatars using “canvas” is suitable for you. 
“Canvas” avatars will be generated for all users who do not have their own avatar images.

Identic canvas

This plugin creates user "identicon" avatars in "canvas" format using user email

harryxuchn

Get a 3D Tag cloud by TagCanvas(http://www.goat1000.com/tagcanvas.php).TagCanvas is a Javascript class which will draw and animate a HTML5 canvas based tag cloud. It support three shape:sphere, hcylinder for a cylinder that starts off horizontal and vcylinder for a cylinder that starts off vertical. Based on TagCanvas version 1.12.

WP-TagCanvas

WP-TagCanvas is a plugin using Javascript class which will draw and animate a HTML5 canvas based tag cloud. It support three shape

Identic canvas vs WP-TagCanvas