SEGWAY. Have you done it? It's great. Fricking amazing how they do it. They have like 5 gyroscopes in it. We rented ours for $80 from Santa Monica Segway, something like 1660 Ocean Ave by the pier. We got a 1/2 hour to learn how to use it and 2 hours on a tour from Santa Monica to Venice. http://www.segway.com/

We tried to get a big group together but for some reason no one wanted to do it, but Yvette and I went with the OG Chingon (aka el Mexitron) and had a great time!
Everyone has to do this, it's too fun!