Let me start by saying, I have no electronics experience at all. So, if your like me, and want to build a cool robot without any electronic experience and next to no money, this project is perfect for you. But beware! This robot tends to run amuck!
1 Homemedic ATOM massager (This is the most expensive and most important item. You can possibly use another massager, but you will have to change the design. I just happened to have one laying around that someone gave as a Christmas gift).
1 plastic single muffin container. This is the plastic shell that a single muffin sometimes comes in when you buy it at the grocery store. You can substitute this item with any small round plastic container with a lid. I just happened to be eating a muffin when had the idea, so it came in handy.
1 UFO shaped Fiber Optic Light (I got mine at the Dollar Store, but I've only seen it sold there the one time I bought it. You can substitute this by making a robot head out of cardboard.)
2 1" inch to 2" inch Brass Brads (fasteners)
Cardboard or Foam board
Clear / Transparent Tape
Heavy duty double sided poster tape
2 decorative glass beads
Glue or Hot Glue Gun
Sticky back Velcro
Sharpie Markers (Ideally 1 silver 1 black) -OR- Metallic Paint
1 broken solar light -OR- modify my instructable http://www.instructables.com/id/LED-light-up-drink-coaster/ such that light turn on by a switch
1 plastic sample/ medicine cup or half of plastic egg (the sort put candy in for Easter)
Check out this video of the disco robot in action. Part of the video can be seen in 3D using Red-Blue (Red Cyan) glasses. If you don't have a pair, check out this Instructable on making 3D glasses http://www.instructables.com/id/Make-3D-Picture-Glasses/