fun with ballistics gel, lexan and things that blow up
Run, don't walk, to your Tivo and set it to record MythBusters on the Discovery Channel. This show with two special effects experts use scientific method (pretty much) and a wide variety of materials to recreate and try to prove or disprove rumors. Find out if you can get sucked into an airline toilet, if you can build a cannon out of a tree, if you can blow up a gas station with a ringing cell phone, if a penny dropped off of a skyscraper can kill someone (probably not... but you should see what it does to a head made out of ballistics gel!) and much, much more.