This is a stick bomb. This is an AWESOME STICK BOMB. This is an awesome kid showing you how to make your own stick bomb. This is another really great stick bomb, but it's not done by that awesome little kid, so it's not nearly as cool.
You got your Rube Goldberg machine in my department store catalogue. (Or the other way around, I'm not sure.)
Chaos Theory is a simple but highly addictive Japanese flash game where 50 blue orbs get launched into the air, and you have a single explosion you can trigger by clicking anywhere on the screen. Each orb caught in the blast explodes itself, creating a chain reaction. The goal is to catch as many of the blue orbs before gravity pulls them back to the ground. Each game lasts 3 rounds, with a maximum score of 150 total points. Click the dark blue Kanji script to begin the first round.This game is old, but I've not seen it posted here before
The Way Things Go. (Google Video.) The incredible short by Peter Fischli and David Weiss. (Mentioned before (1, 2, 3, 4, 5, 6) but here is the complete film!)