Let's Make Robots!

desk

So this guy happened last night. I have been inspired by the work of Mr. Protowrxs and his Box Head Robot and thought I needed a little deskbot as well. I also … Read more
Line Follow, DeskBot, IR R/C, Bump-n-Turn
Using a
Little Line and Ledge Bot   ***UPDATE 8.3.12*** Added video of desktop/ bump and turn routine (Top Video)   Read more

Uber cheap build idea, needing input...

I'm looking to build an uber-cheap robot arm, with the purpose of just sitting on my desk and picking up whatever i want it to... Probably stick with a basic control (independent forward, off, reverse switches on each motor) setup. What i'm trying to figure out is, I'm planning on using a standard 3 wire (forward, ground, reverse) style motor similar to that found in a cheap rc car, yet i can't find any places to buy them, except in the cars. any sugestions?