Here's something fun; do you know about this site? Is it just amazing what these computer's can do?! You can create you own Jackson Pollock-like painting.
It also reminds me of the cool color selecting on Etsy. Just start moving your mouse around.....really...it looks like a blank screen doing nothing....move your mouse.
And here's a hint, to add more colors left click....
OK .....NOW GO AND PLAY!!!