Modular Robotics MOSS

Insanely smart and cool, this modular magnetic robot kit consists of blocks with dedicated functions that click together to instantly become a functioning device. There are a range of block types – one for battery power, another for movement, one for control, one for audio, and so on – and all work with each other, so you can assemble them in essentially infinite ways. [From $150, due April; modrobotics.com]