I've seen this tip around on other blogs, but don't remember exactly which one. I took the leftover scraps after making all I could think of and made a couple more cards. Start with a 1.25" square, and cut the rest of your paper into 1/2" strips. Center the square and then start working your way around, pinwheel style. Keep going until your card is covered, then add your sentiment and other embellishments.
Artiste Cartridge, page 63
B is for Baby (D1561)
I stamped and cut the saddle to match, and used Liquid Glass and bakers twine for the tail.