http://www.stuff.co.nz/oddstuff/2323710/Cup-stackers-show-fast-hands
These kids have learnt the art of EXTREMELY fast cup stacking, which looks really awesome in the video. Sorry, I couldnt embed it, but this but heres some others in case that URL disappears.
Find out more about this unusual sport at http://www.speedstacks.com
www.speedstacks.com