Iron Man Arc Reactor (Rechargeable!)

This easy Arc Reactor prop only requires a 2.55" (65 mm) outer-diameter LED ring, an Arduino (clone), a switch, a small LiPo battery, and a LiPo charging module.

This one was hastily thrown together before last Halloween. It's not too pretty, but it looks decent at night with the spinning glow effect!

If you make your own, be sure to post a make and show it off!