Another way to waste time!

[Sarpedos]

I'll just apologize in advance for wasting hours of your time... but it's captivating! No real goals, just a few simple rules... it's great to play around with and see what sort of bizarre things you can do.

http://chir.ag/stuff/sand/

[Tzaphnil]

.... I think Iwasted nearly two hours with this thing..... Pointless, but adicting.