Rainbow Loom is very fun to do. Here is a picture of me and my cousin Sandra from a few weeks ago. I still had my boot on from when I broke my foot. I hated that boot!
My friends all make rainbow loom bracelets. They are made with rubber bands. You actually really just need a hook, cardboard and push pins if you don’t want to buy the kit. You move the pins around to make the different bracelets. But I have the kit.