I found this rather uninteresting...though in theory it could be a lot of fun. Many of the offerings were silly, trivial things, while the ones I really wanted to try—"Make Your Coat of Arms," for example—didn't work right when I tried them.
However, I finally went to BIG HUGE LAB's Flickr Toys and used Create a Magazine Cover to make the following:
This was sort of fun. I only wish I could have chosen my own cropping of the image, instead of the default crop the app used.
But, it's free....