A while back I used small embroidery hoops to create wood burned bangles and since then I have been finding all kinds of ways to transform embroidery hoops into unique bangles. The hoops (I used 3") are super light, thin (so you can layer lots of them comfortably) and really cheap! You could use just about any mixed media techniques on the surface- here are three of my favorites!
Grab a permanent marker and doodle!
Use colorful acrylic paint and go wild with layers!
Any kind of fiber can be used to wrap around the hoop!