There's a cute site called Curiosite that sells the Condometric, a condom that allows you to easily measure his length in millimeters, which sounds way better than inches. The marketing line is something of a non sequitur, though: "Because what really matters is the size of your confidence." So why measure your dick in the first place? Truth is, according to our totally nonscientific survey, what really seems to matter most to women is girth, not length, if they have to choose one.
Curiosite has lots of other cute stuff you can buy, but my favorite is the page of gifts for your ex. Among them: Dead Fred, a pen dead-man-shaped pen holder that you stab your pen into, and a time bomb alarm clock.