(This time, next year, I'll be elbows-deep.) - "You have an old motorcycle you want to rebuild. We have the process to make that dream a reality, and tips on what you’ll need when you’re ready to start.
Easy, cheap, and can be worn as a pendant or as charms on a bracelet. You can buy bags of colorful polished rocks or pick up special ones at kids’ stores (science section), gem stores, etc… Tutorial from.