Jewelry heartbeats. Earring design from visualization 3d printed Soundwave. Wow!
DIY Tutorial Box Cardboard Cup
Hey, I found this really awesome Etsy listing at http://www.etsy.com/listing/129250465/origami-elephant-mobile-elephant-mobile
Here's a drawing project that could be great for relaxation and expression, especially for teens!
Wire Lettering - this would be very tedious, but it would make for awesome texture in a mixed media piece!