This is such a fun project! It's one of those projects that you are just giddy about, you know? We have literally been playing it for weeks. I initially made all the rings black, but since have made a bunch of more colorful ones. Even more fun! This DIY is a lot like this one here, but with some minor differences. Of course, the colors are all customizable, but it costs next to nothing to make and is endless fun for the whole family. You can see the full tutorial here. Have fun!