I think this stamp set is so cute! It's the CTMH Paper Lantern stamp set found on page 90 of the Spring/Summer 2012 Idea Book. The Idea Book shows the laterns on a box made from the Art Philiosophy Cartridge, very cute.
My card is made from left over scraps that I had kicking around from Stampin Up paper (sorry but I really like their paper) and some extra ribbon I picked up somewhere. If you like the stamp set as much as I do, Check it out here!