Awesome Update: "Anonymous" posted David Bromstad's actual technique video with the 'how to' for this project. Thank you Anonymous!!! :) Here's the link: http://www.hgtv.com/video/celebrity-art-project-video/index.html
I was watching "Color Splash" on HGTV one day and the host of the show, David Bromstad, was creating a great painting using acrylic paint and a water spray bottle. He'd paint a little and then spray it. The water would give it a kind of rained-on look, but in a good way.
I thought it was pretty clever so I made a painting using this technique.
Try out this out, but be prepared to catch the dripping water and paint with something besides your carpet!
Additional Comments: Folk Art is the brand of acrylic paint that I used. I find that the acrylics that come in the tubes are thick and hard to manipulate so try to get it in the container-I think it's pre-mixed with water.