A great way to recycle your plastic water bottle caps is using them as a base for a custom made pin cushion ring. There are different tutorials out there. I've put some of the different ways of making them together to come up with this result. The band around my finger is made out of an elastic band and is attached with glue and some small stiches (it is not pearced through the cap, but attached to the felt on the bottom). You can use either fabric or felt to make the pincushion ball. I've made these needle felt balls before and this is another great use for them.