X111.com

Select an image effect from dozens available, upload your picture and tada, done.

Effects range from plastering your photo on billboards, famous paintings, with celebrities, as movie characters to you name it. Of course the quality of the output depends on the photo you uploaded, so you may have to keep the angle and edges in mind, but it’s still good (and quick) fun.
So try it out yourself over at http://www.photofunia.com