My son’s going as Pokémon Trainer Ash Ketchum for Halloween this year, so I was inspired to make him a Poké Ball for his costume.
I was initially inspired by this Instructable, which also uses a plastic Christmas ornament. I took it in a different direction by using the grommet and furniture glider, and using acrylic paint on the inside. You can get a pretty good feel for the project from the photos I posted on Imgur (embedded below).
Items you’ll need (Amazon links):