This isn't new, by any means, it was discovered in Joe Grossberg's blog, and brought to my attention by Alan, last year. Neither of them posted the pictures though, so this is for posterity.

Exhibit A: the "Head First Design Patterns" front cover:

Exhibit B: the graphic from Vagisil's teen centre web-page:

The moral of the story? Even self-assured design-pattern toting geek girls need feminine hygiene products. Oh, and also, it's probably worth the extra few bucks to pay for exclusive use of that cover photo.