Here is a video of it in action: (note: video has pay-per-click ads)
.... here is a link http://youtu.be/uAVHzY3DQAIThe main thing is the claw. I had a hard time finding these and had to go to a supplier in China.
I've posted them on amazon here:
Claw Machine / Crane Game -- Actual Claw (note: this is a link to my own thing on amazon.com)
The other parts are: 1" PVC pipe Stiff wire A spring (optional) A nut and bolt (size 10-24, length is not critical, a little smaller diameter is okay) Electrical tape Thin strips of wood - for handle (or something better) Plumbers strap - for handle (or something better) Black spray paint