Rubber Band Engineer
They're straightforward and versatile, and now the world of rubber bands is expanding even more with the release of Rubber Band Engineer. Using tons of great color photos, you get instructions on how to create slingshot rockets, unique catapults, and hydraulic-powered machines. There are 19 different designs laid out in the book, and you don't have to have any tinkering experience to have a good time. Just group together household materials like paper clips, pencils, and popsicle sticks to help build your next DIY rubber band project.