Grab some friends and family members and join us for a special holiday chain reaction (Rube Goldberg) build-a-thon on Saturday, December 20th from 10am-2pm. Help build a fun interactive chain reaction with recycled materials, old or broken toys & electronics and other stuff we have laying around. Please bring some of your old or broken toys and electronics and put them to good use. Cost: Included with drop-in or membership. Ages: All, including mom & dad.