Source: Instructables
2. Rainbow Crayons
Before you throw out your broken crayons, upcycle them into rainbow crayons by melting them together. Throw assorted colors together in a mini-muffin tin and bake them at 275 degrees for 10-13 minutes. Once the wax has cooled completely, store them in the fridge for a super-blast of cold for 5 more minutes. Then they’ll be ready to pop out of the pan. These mixed color crayons are perfect for little hands and a novel way to color for older kids.
Head over to Instructables.com for the full tutorial and other fun crafts!