Check out this great project by Josh Burker on Instructables!
Up to 1 hour
Grades:
6 - 12+
Supplies
Makey Makey Classic- (up to 12 Makey Makey Tubes could be connected to a single Makey Makey and individually programmed to each do something different)
Alligator clips- two for each Makey Makey tube
Section of 3/4 inch PVC tube- approximately 8 inches long