Robots that don't fit anywhere else go here.

Cicada: A simple vibebot
Cicada is a 1381 solar engine hooked up to two vibrating pager motors.  Using two motors on the same axis makes the robot rather random.  Sometimes the motors interfere constructively, other times they cancel each other out.  The legs are springs from old CD-ROM drives.

Starpod: Aesthetic magnet
This robot is a symet that has been fixed to a magnetic base.  The result is a nice spinning art piece that can be attached to anything ferrous.  The magnet is strong enough to even hold the device upside down.