Probably the world's most useless token, acceptable in absolutely no respectable establishments worldwide.

However, woo your casino buddies with this exclusive chip, worth 1 Gigillion credits.

Edit: Added a keyfob version, so you'll be a Gigillionaire wherever you go.

In reality, I just use them for colour swatches.

http://www.gyrobot.co.uk
http://www.facebook.com/gyrobotuk