Build your own 3D printed Android.

Via Endadget, Cubify allows you to build a customized Android with different accessories, in three sizes (~2.5" / ~3.0" / ~3.5").  Mind you, it's quite a bit more expensive than buying the standard Android bots that you can get from the Dead Zebra shop, but it's always more expensive to make one-offs than to use mass production techniques.