Polymer simplifies the creation of sprite images for web applications, while also generating nifty Sass mixins. CSS files are available for non-Sass users.

Add social media icons to your Rails 3 using CSS sprites or images

Discovers and compiles SVG files into a sprite sheet that can be used for icons and such.

Scavenger takes a directory full of SVG files and turns them into a usable icon sprite sheet

Provides helper methods to render icon links compatible with Redmine 5 legacy icon classes and Redmine 6 sprite icons.

Library for painless sprite animations on Gosu, with an easy and nifty API, made in pure Ruby with no dependencies at all!

Lash will bundle and compress most common static assets using Googles closure compiler for JavaScript, SASS for CSS and will package loose image files into a single static CSS sprite.