I've been wanting to try my hand one of these watercolor prints for a while now, and after two attempts I came out with a product I'm satisfied with. The professional ones are still better but it was a fun process.
I copied my sketch off of a perfume ad from a magazine.
My first painting I smudged the letters when I attempted to erase some pencil marks and I couldn't live with it so I whipped up another one. However, I liked everything else about the one I "ruined," I especially liked the purfume lid better on the ruined one! They didn't take too long to make though.
It's by no means perfect, but it hangs in our bathroom and looks pretty nice.