Jo Ann's carries this set of stamps, and The Octopode Factory has a unique take on Oz with their digi stamps here. There's a tie for cutest Oz stamps imo. The first is from here and looks like this.
The second is from Kraftin' Kimmie. Love them both—and they each have more Oz images for sale. I'm thinking I'd better make some Oz stuff to post!!
Happy Friday, and watch out for flying monkeys!