Files Deriv F8S Sas0 F35J1Of9 F8Ssas0F35J1Of9.Medium
Jeffkobbi writes –

Some friends wanted a lighted hula hoop for burningman, and when they turned out to be about $200 each, I decided to make one. All the parts cost about $15 . . . total time to make the hoop was about 3 hours, but that included time for figuring things out. You could probably make one in less than 2 hours with this instructable and soldering skills…

LED Hula Hoop – Link.