Games
Sodaconstructor
What's sodaconstructor? According to its makers, it is “the online toy where you can build and play with things made out of masses, springs and muscles”. You can play with a sample below (please note that you'll need Java to be able to play with sodaconstructor):
To make and play with your own (and also many other people's) creations, go to sodaplay.com.
Warning: We bear no responsibility for any lost productivity caused by addiction to sodaconstructor.