I have only found to date (1) book on appliques, that I picked up at JoAnns. It's called Applique Delights, from piece of cake designs, The authors are Becky Goldsmith, and Linda Jenkins. Lots of patterns to play with. But I have yet to date found any others, nor have I found any web sites. So if I want a pattern piece, I sit down and start drawing, what I want, Then I'll enlarge or play around with it. In Applique Delights, there are 100 applique blocks you can do, and of course play around with. I love applique, but I to am limited do to availabilty of sources. Another good place to look is in coloring books, REALLY, there are some neat things to play with in there.