These are some gorgeous looking prototyping modules from Machinecollective.org. They are meant for building physical computing interfaces, such as music control surfaces within a sturdy, attractive case. They are modular (I love modular!), can have customized faceplates, and snap together in different configurations.
The site is doing a public beta right now and should be selling modules in September.
I’d love to get some to play with for my ongoing CG character animation interface project. What would you build?