Dec 10: Diabolo advent calendar

Day 10: Dental floss
This trick is something you only want to pull off once in a while because the molars can only take so much. The less natural evolution of bounce around the head.

Author: Ianforrester

Senior firestarter at BBC R&D, emergent technology expert and serial social geek event organiser. Can be found at cubicgarden@mas.to, cubicgarden@twit.social and cubicgarden@blacktwitter.io