Hell of Sand

http://andyslife.org/games/sand.php

Hell of Sand is more a Toy than a Game but it still is an entertaining little java (yeah, it's not flash all right) piece. There are a number of faucets and tools that you can play with to create flows of sand, salt or water. With some more mechanics and possibly limited use of the tools this could be a nice puzzle game. Also playing around with the C4 is a lot of fun.

(via Kotaku)