Sumo Paint is a free online graphics package that is great fun to play with. The effects it can produce are pretty impressive too. I recommend having a look at some of the images created by the users. I have only managed one image that I care to share with anyone else.

Considering this is a free program, there is much it can do. However for us creative types, it can help us lose even more hours on the internet, but at least at the end of the day, we might actually have something to show for it!