I made a flying saucer from recycled components.

One part was a gear box from an old VCR (Video Cassette Recorder). Another was a shower cap. I also used 1 mm metal wire.

You can see the sculpture spinning in those YouTube videos:

Step 1: Attach the Shower Cap to Gearbox

I used pliers and thin metal wire to make a few loops in and out of the holes of the shower cap and the wheel.

Note that the small purple wheel has a bolt that is used to tighten the wheel to the gear rod.

Step 2: Put the Shower Cap Lid On

I attached the lid easily:

Step 3: Testing

I connected the gear to my bench top power supply.

This is the fastest speed that spinning sculpture reached:

The voltage from my power supply must have been about 6 V.