Build a machine that accomplishes a task in an inefficient way with this Rube Goldberg challenge. Find some tips and a place to document your engineering process on this site.

Build a virtual Rube Goldberg machine, and try to create a successful path for the ball. Requires Adobe Flash.

This site from PBS Kids "Zoom" provides great ideas for building a Rube Goldberg machine around the house from common items. The information is complete with materials needed, instructions, and results on a level for elementary kids.