Turn a regular fan into an amazing rainbow one. Yeah so I skeptically tried this, based on the picture. It looks brown when it's spinning, which makes logical sense, not all pretty and rainbow-y. But my kids still thinks it's great.
Punch a hole in the shape of a heart into an old book (I'm thinking a dictionary and choosing certain words), and arrange them into a frame for a decoration. This is actually really cute, and just about any shape would do.
13 Ways To Turn Your Outdated '90s Tech Into Truly Usable Things