A sparkleball is a magical ornament handmade from plastic cups and mini-lights; usually displayed at Christmas or holiday time.
You'll need 50 soft 9 oz. solo-style plastic cups, a hole-puncher, a drill with a 1/2" bit, a string of mini-lights (100-150), and 200 small zip-ties or your choice of connectors like wire. (recycled clean cups will work perfectly as will an old string of mini-lights.)
NOTE: The "no-melt" refers to the old school method of melting the cups with a soldering iron. This INSTRUCTABLE has been so popular, even though there are new techniques in making sparkleballs, I've just left it the way it was first written.
Drill the cup bottoms of all 50 plastic cups. You can stack and drill 2-3 at a time. The holes should be about 1/2" or large enough to insert one or two mini lights.