Say you move into a house and find a trampoline in the backyard. What should you do?

You could construct a system of 100 full-color LEDs around the frame....

...and put pressure sensors in the springs, to detect bouncing...

...and write code to perform various lighting effects when people jump.

And then you throw a party 50 people can jump on it.

The exposure was too long on some of the photos. They didn't come out right...

Fun fact #1: I brought this project to the Hackers Conference, and was prohibited from setting it up for liability reasons. A trampoline is too dangerous for the Hackers Conference.

Fun fact #2: Leaving bare circuit boards out in the rain and sprinklers -- no problem. Letting circuit boards soak for weeks in a leaky project box that has filled up with rain -- big problem.