The Stemie – You'd Be Nuts To Ride Without One
The Stemie is a rubber cover that fits over the part where your handlebars meet the frame. The concept is quite simple: instead of risking potential castration, you put a rather unsightly rubber ball on your bicycle, and protect the family jewels. The Stemie is a mere $19, which is a small price to pay to prevent a crushed testicle. Plus, it beats shoving a cup down your bicycle shorts.
[via Bike Snob]