I must stop.(just one more?) I do see benefits though. It cleans up the ano, especially on the threads. Also makes your lights unique and is a way of indentifying them from other people's. Say someone stole your lights and were caught but how would you prove they were yours if they dont have serial numbers. nevermind.....
A gas torch is really a fast way to do it. I was thinking of heating one up to the point were it just starts to change color and then dropping water or oil on it.
The 504B is almost handsome now.
Looks like I need to bake the tube a little longer. My F15 is now the automotive equivalent of a 1997 Eldorado with a carriage roof, wide white walls and a Continental kit.
Foy
This one is for Boaz. I know how much he loves these lanterns. I went a little too hard on this. You would not be able to reach this temp in an oven. The kd c8 is to show the difference in color.
@edc: Is the top light a Yezl Z1? I have that exact light but mine doesn't say CREE on the faceplate. I'm interested because it is really my crappiest light, but I like the size and form. Turning it into a copper or bronze color would be a definite improvement
I believe it to be the Ultrafire 2100 - basically the same light as the Yezl
Ah, thanks. Looks good in copper either way
correct!
Amazing, simply amazing. I had more fun doing this than a kid in a candy shop.
Hahaha I’m glad I brought some fun to u guys, I’m cooking a lot of lights to ,will show soon ,lol it’s addictive
yep, I was skeptical at first..then fired up the toaster oven on broil and threw er in...ten minutes later I was whoopin. Wife thought I had burned kitchen stove as it smelled for a minute or so.(old lube i guess). When I showed her what I'd done she laughed out loud. Alchemy Alchemy....turning black soot into GOLD....LMAO !!
I tried this out on the bezel and tail cap of a cheap torch I had. Instead of putting it in the oven I put it under the grill for more direct heat. I think the problem with putting it in the oven is even at the highest temp the element will be switched on and off to maintain a constant temp. The grill just runs flat out. It worked well and I got a nice bronze effect after ten minutes. Not able to post pictures at the moment.
I had to crank it up to 500 degrees before anything happened. I put an L2i in @350 and it did nothing. Gonna try again at 500.
500Foy
Broil not bake 
Ohhhh . . . .
I did it wrong. No wonder it took four hours.
followsinstructionswellFoy
I really must stop. I am wondering what my original dqg tiny aaa would look like baked. It currently has a titanium finish. Well thats what it was called I think.
Swear to God, this is the last one....
This time I did use the broiler, 20 minutes vs 1:45 in the oven. I must say this little project breathed some new life into my least liked flashlight, the Yezl Z1 - Poor finish, ringy beam, flickers, sometimes won't switch modes. So I figured it wouldn't be a great loss either way, plus I saw how edc's UF2100 (the Yezl's doppelganger) turned out and I liked it. And better pictures from my wife's new digital camera instead of the iPhone:
Color is really a cross between gun metal and antique bronze, depending on the light. While I had this thing apart, scrubbed everything clean, sprayed a bit of anti-corrosive lube spray into the switch, lubed the O-rings and threads, tightened everything down and added diffusion film to the lense (courtesy of Chicago-X):
I've always liked the size and form of the Yezl, now it looks nice and works nice too. No longer my least favorite, now middle of the pack. 
Science Projects Rock!
If you can get, or borrow a small butane or propane torch, it works as well or better than the broiler and it’s more fun to “burn it yourself”.
You could do it over a gas stove too. It would only take minutes to do. Don't over cook it though. I haven't cooked my dqg yet. I am still trying to resist the temptation.
I actually used a frying pan! put it in aluminum foil and just heated that up... (fan on)
not sure what helped the best, because I used a conventional oven and a 1000w toaster :)
now it has a nice "brown glow"
It's press fit. By pushing hard on the tailcap you might push the whole assmbly out. The boot will be severely damaged (could use a better color boot anyway) and maybe the switch too. You will probably need to glue it back in after cooking.