Sand and flames

Here's a cool simulation involving falling sand! You can also build walls, use Nitro, C4, Napalm, Fire, Plants, and other materials to create your own environment...if you get bored, you can also pour a little Nitro, C4 and Oil into a cup made of "Plant" and then set the plant aflame, watching the whole thing explode beautifully. - I think I've had a bit too much Coke this morning.