There's a new book showing photos of past Wacky Packs!
It looks beautifully designed, and Art Spiegelman wrote the intro. Unfortunately, it looks like that's all the text there is. I would have loved to have it feature behind-the-scenes info, whether about the WP design process or about the reaction of different products to being parodied...or stories from kid whose moms yelled at them for covering their bedroom door with Wackys, that kind of thing.
(Via Information Junk.)