Tux
Liz writes –

If you love Linux you automatically love Tux, the cuddly mascot-slash-logo for the open source operating system. Just as the software is free to download and install as your computer’s desktop, the patterns for Tux can be downloaded so he can sit on your desktop next to your computer.

The Free Penguin project provides the “source code” for plushie Tux sewing patterns. Your hardware requirements for executing the source code are a printer, fabric access, a needle, thread, and scissors capable of cutting said fabric. Download a development release.

Free penguins! – Link.