I was interested in getting the watercolor technique into photoshop, so I researched watercolor-y tutorials. I found one that I found interesting and followed the instructions with a stock photo that I received via the interwebs. I think this technique would be well used for icons or business cards as it's interesting and fun.

"Some time ago I wrote an article on my blog listing some fashion-style illustrations from really amazing designers such as Bruno Fujii, Margot Mace, Raphaël of My Dead Pony, Stina Person, and others. The coolest thing in their design work is their use of watercolor effects. So in this tutorial I will show a quick way to simulate that effect using only Photoshop and some brushes."