littleBits Rule Your Room Kit

littleBits is a platform of easy-to-use electronic building blocks that empower you to invent anything, from your own remote controlled car to a smart home device. The Bits snap together with magnets, no soldering, no wiring, no programming needed.

Check the site for more ideas. 

Inventions include:

• Creepy Eyeballs

• Moving Collage

• Buzzing Booklet

• Burglar Buzzer

• Domain Defender

• Top Secret Safe

• Carrot Control Pad

• Programmable Pop-up Puppet

Read the review by DIYODE magazine here