"Things of Science" kit: "Aerodynamics"
I bought this old kit on eBay a few weeks ago. It came with a balsa wood toy airplane, a piece of blue paper, and a green soda straw. There was also a piece of modeling clay, but I think I'll get a fresh piece to use instead.
I never had a balsa wood plane, but I loved making paper airplanes. This should be fun!
For more info:
http://ecg.mit.edu/george/tos/