Are you too productive? Does your boss keep giving you a new task every time you get the previous one done? You need a timewaster - and there's nothing that wastes time better than Soda Constructor.
This is a Java applet on a Web page, but it's no ordinary one. The applet displays in a window, and models a few basic elements of physics - gravity, tension, compression, friction and rigidity. This deceptively simple set of parameters produces an application that's a bit like a living Meccano set, where structures that you make are animated by rules which you can adjust to your taste. You can spend hours creating surprisingly lifelike "creatures" and watching them move under different conditions.