makerfaire.com:

Maker Faire Bay Area 2009
The Ultimate Crunch

Location: West Gate West lot entrance

Recycling, at its best. Hands-on, interactive event, encourages individuals to work in their own geographic region (city, school, community). I demonstrate how to build your own equipment and provide DIY plans. This is a masters, green-jacket eco-game. Play for fun, or go for gold. It’s tournament time!!

Web site: http://ultimatecrunch.com/

About the Maker(s)

Ralph Gardner
I developed the Kruncher Game for a University Earth Day activity in the mid 1980's. Over the years I have simplified equipment, published DIY plans, and refined scoring to follow changes in the manufacturing of standard beverage cans. Every year I operate events for fun, community involvement, education, and fund raising activities. In life I am a computer professional. But, I am also a builder, an amateur wood worker, and a determined inventor of obscure little gadgets.
heyralph.com