http://www.lygte-info.dk/review/Review%20below%20AAA%20UK.html
A look at small flashlights
and page down to:
Lights with CR2: Extreme Micro, Aeon, Cute CR2
and, use Google using the “verbatim” search tool setting
and you’ll turn up a variety, such as
http://www.aliexpress.com/item/SecurityIng-600-Lumens-CREE-R5-LED-Tactical-Gun-Flashlight-P05-with-3-0V-800mA-CR2-Battery/32359979554.html
These were more common a few years back, many that I turn up with a quick search are sold out, e.g.
http://www.dx.com/p/aurora-sh-033-cree-xpe-wd-q5-5-mode-220-lumen-memory-led-flashlight-1-cr2-36025
http://www.dx.com/p/f-l-j1-3-watts-flashlight-cr2-grey-900
(DX is the poster child for keeping old out of stock items on their website, sadly, but you might find those elsewhere)
I have several bought years ago, mostly Romisen, they’re reliable, not terribly bright, in the emergency/earthquake light stashes
If you can find one of these used/second hand, it’d probably be ideal: FOURSEVENS Quark MiNi CR2