I found this book called Penis Pokey while reading my daily dose of blogs. It's a funny idea... the book comes with a hole in the middle through which someone sticks his... part. Each page of the book alows the "part" to be a different thing, say an elephant trunk for example.
What really got me was that Amazon recommended that I buy Gregory Maguire's "Son of a Witch" book with it. Because, I totally see the similarity.