Drip.Dot.Swirl, a book and DVD offering 94 patterns for design or illustration has recently been published. It's a fine collection of repetitive designs and patterns that can conveniently be used by graphic designers and illustrators.
When preparing the book, Von Glitschka, the author (and also an incredibly-talented illustrative designer) asked me to submit a design incorporating one of his patterns. I was honored and used his pattern in a Christmas greeting.
Visit Amazon to pick up your own copy today... you won't be disappointed.