I've been playing around lately with Waterlogue, a fun little app for iOS devices. It's pretty simple: insert photo, receive watercolor.
I think quilts look especially nice "waterlogued."
It makes me wish I could paint watercolors myself...but that's probably not gonna happen. So maybe instead I'll just print some of these and stick them up on my wall. I think the quilt ones would look pretty on my sewing room wall!