Titanium AAA Killer Keychain Light
The Big Brother to La Petite Killer is longer, 2 1/2" vs. 1", and brighter, as the 5-die LED is driven at 90mA vs. the 12mA drive current of La Petite Killer.
Killer AAA Titanium Keychain Light—$110
The bare Titanium version—Titanium is lighter than steel and stronger as well. The beauty of Ti is that it wears very well even as it gets scratched and dinged. And should you want to restore it, some light sanding with wet/dry sandpaper is all it takes.