An exhaustively documented (and sometimes funny) wiki pertaining to the Transformers media and toy franchises.
Oneko is a screenmate for X written in C. It has different skins e.g. cat cat, dog dog, tora (striped cat) tora, Cardcaptor Xakura chasing your mouse cursor. Images used are .xbm (X bitmap) files.
A collection of greyprints for Construx parts.
In addition to the usual toys, they also sell pranks only Satan would try.
Maybe make a bot out of this?
A specialized packet sniffer that grabs images from wireless networks as people surf the net.
What if Friedrich Nietzsche wrote Bill Keane's comic strip Family Circus?
A gallery of images made by sticking random toys into a radiograph.
The Universal Construction Kit is a set of open source components that you can fab on a 3D printer, which allows the user to hook together different construction kits without duct tape or twist-ties. The components make it possible to use Lego, Duplo, K'Nex, Lincoln Logs, and other construction kits in the same project simultaneously.
The whole set can be downloaded as a .zip file from the website.
The .stl files carry a Creative Commons By Attribution/Noncommercial/Share Alike v3.0 license.
Note that the .stl files are in inches, not mm. Double-check the settings of your 3D printer before fabbing!