I'd advise you to get one of these:
http://www.cpfmarketplace.com/mp/showthread.php?t=195648
I've got one on my keychain and its a tough bastard (compared to the Merkava Nite fobs
http://www.cpfmarketplace.com/mp/showthread.php?t=197015). Not to mention the fact that its going to glow nonstop for the next 10 or so years makes it a decent purchase. Or if you really wanted to have some fun you could get some vials (
http://www.cpfmarketplace.com/mp/showthread.php?t=194646) and make your own fob or put them in whatever you like...I've been wanting to stick a vial or two in a Izula handle for some time, but I'm still trying to figure out how to protect the vials and I'm leaning towards encasing them like iknitsteel does.
EDC:
http://www.cpfmarketplace.com/mp/showthread.php?t=206374
That flashlight justs makes me feel all warm and fuzzy when I turn it on. There was a accident where two cars hit and one rolled off the road that I witnessed and a cop was a few cars back from me. He and I both were out of our cars and heading out into the snow to check the rolled car at about the same time and when I snapped on that light (Fresh 18650 in it

) and it lit up the area I got a "Holy ****" out of the cop...After the people were dealt with and I was filling out my statement the cop was busy playing with the light. You tend to get that a bunch when it kicks on full power.
Keyring Light:
http://www.dealextreme.com/details.dx/sku.1253
Cheap, handy, and a good gift. Takes like two weeks to get here from China so order 2-3 packs of them...At .47 a piece its a helluva deal and they are so handy to have.