A company called Blandito has designed a circular, foldable pillow that can be manipulated into many shapes (bed, chair, cubbies of different kinds.) Extra larges for adults as well as children's size. I can see this being great biofeedback for sensory averse/craving children. Too bad it's still in the design phase!
Speakers made from jars. Based on MIT Media Lab's High-Low Tech Fab Speakers and created by RISD student Sarah Pease.