ThinkerToys is the brainchild of Dhairya Dand, who had the novel idea to build small, simple modules from Arduino that could be wed to common e-waste such as keyboards and CRT televisions. One such idea is the Keyano, which turns (what looks like a PS/2) keyboard normally used for typing, and turns it into a musical keyboard.
Another device is the TV++, which can connect to any standard CRT and provide learning games for children.
Their site claims to be an open source project, but I’ve yet to spy any documentation. Here’s hoping that some comes our way soon.
[via Arduino Blog]