Kendamas

Kendama (Sword ball) is a traditional Japanese game of cup and ball growing in popularity with jugglers around the world.
The object is to balance the ball (attached by a string) with one of the three cups or spike in increasingly complicated and difficult combinations.
There are litarally hundreds of tricks and be warned this is highly addictive.
For a taster of some basic tricks check out the trick list for the 2009 British Kendama Association Open championship at juggling.tv