I found this project on the Bloesem Kids blog and it’s a wonderful way to recycle old CD jewel cases.
Before class I emptied out some old cases from boxes of CDs I had stored in the attic. I had to reject a few that had parental advisory stickers attached (doesn’t Prince’s Purple Rain seem kind of quaint these days?), as well as a few that were cracked. The Bloesem blog advises using Fimo dough to create small balls to navigate the maze but I used ball bearings instead. Luckily our local hardware store has a drawer with loose steel ball bearings for $.20 each. A diameter of 5/16″ was perfect; bigger than that and the ball would get stuck in the case, smaller and it would jump the sides of the maze.