If the ringing of your bicycle's bell isn't getting the response you're after from motorists—namely, please don't hit me—it might be time for an upgrade. Sixty-five bucks will get you the Orp, an LED headlight that easily lashes and unlashes from your handlebars and emits a loud shriek that can be heard inside a running car—even with the windows rolled up.
The Orp actually has two different horns to choose from. A polite and subdued 76-decibel chime to alert pedestrians of your approach, and a more obnoxious—though effective—96-decibel shriek to let drivers know you're nearby.
It's completely waterproof, and of course rechargeable—the 87-lumen LED headlights run for a solid three hours on a charge (and even longer if set to flash). It's a little on the expensive side—no doubt there—but can you really put a value on not getting creamed by a distracted driver who didn't know you were there? [Torcano Industries via TheGearCaster]