Hydrodynamic Building Set
How fun is this? A science nerd at heart, I would love to have this to build. This is a great gift for kids, too, who love to build things. It is a challenge to build, however. It doesn't come with step by step instructions, just how the girders connect, how to build the tanks, and some pictures of the completed product. Once you've figured it out (it gets built from the bottom up), add some water and some food coloring for added effect and impress yourself and your friends. I love science.