BUT--I do think it would be a really good postpartum gift. Whether or not a mom is in Boob Hell, postpartum is a lonely time. Another postpartum mom could be comforting company, even if she's a self-obsessed psycho. Postpartum moms who are nursing are usually in some state of boob discomfort and can relate at that level too.
Most important, a postpartum mom needs LOTS OF GIFTS; way more than she needed when she was pregnant, although she didn't know it then. Buy her fourteen or fifteen copies so she can build some kind of arty structure and pin it. Tell her to make sure the cover is clearly visible.
Still life with Boob Hell