Drain cleaner is usually pretty much neat sodium hydroxide. It’ll do the job nicely.
For that matter, straight sodium hydroxide is cheap and easy to find. Just keep it off your skin and especially keep it well away from your eyes. It can eat metal - it can eat you a lot more easily.
Nice work Justin!!
That is a very creative idea, especially since the only type of work like that has been done using laser etching. You have demonstrated a simple, low cost solution for others wanting such detail.
Your work continues to inspire me!!
Hill
Very cool technique! Love it!
I think "Greased Lightening" is also available in some Dollar Stores.
-Garry
Beautiful work, Justin!
Thanks, OL, keep thinking these things up. Good way to put names, initials, designs, etc. on lights.
Justin,
After we had talked I was curious on how it would turn out. All I can say is that it looks better than I'd ever imagine it could! The flame graphics you found, the tracing and cutting, and the application thereof all look top notch. Very nice work, sir!
-Tim
Yeah, ya big hoarder. Always buying up multiples of things. 
Ohhh yeeeaaahhh :heart_eyes: Old-Lumens Maglite series NEW!!! 
I'm like a broken record, but nicely done !
I use greased lightning because it's less caustic than drain cleaner. I don't know if drain cleaner would damage the tape, but I know I don't like to use it at all and Greased Lightning is much easier on my lungs.
ALWAYS use rubber gloves, safety glasses, long sleeves and long pants. This stuff will eat your skin on contact. Use it in a WELL ventilated area. Rinse thoroughly with water and I use 95% alcohol after the water.
I use it straight out of the bottle, into a plastic container. I put the parts in for a half hour and then I pick them out and rinse in water. I use #0000 steel wool, to wipe the parts, to knock off the film and usually I have to put them back into the bath for another half hour. Sometimes I have to turn them over, to get everything. Remember, you are removing two layers. The first layer is the color layer. The second layer is the ano and it looks like aluminum, since it's an almost clear layer. It takes longer to get the ano off. The color comes off fairly fast. If I had an aerated bath, it would speed up the process.
Type III ano is hard to remove. It usually takes more than a couple hours.
I don't throw away my GL after one use. I pour it back into the container and reuse it several times.
Here's a google search for Greased Lightning.
I think many of us would have used the first or maybe the second set of flames and said ‘good enough’ and been dissatisfied with the result and given up. Nice work again Justin. Your attention to detail really pays off. Maybe you should start making two of each from now on. One for Scaru… And one for someone else. 
I am fortunate enough to have access to highly concentrated NaOH which strips anno pretty quickly. However, that being said, I have "over done" the process once before and have to monitor the reaction constantly. The GS seems to be a more gentle approach in that it works a bit slower, hence more control over how much is being removed.
Thanks for the helpful information, Justin.
Ain’t that the truth
I have to wait to list it till about 2AM or 3AM hoping he's asleep, but I think he's got an OL alarm set on the forum somehow, LOL.
I'll tell you, it was hard enough making one of those, I wouldn't want to make two. My nerves were shot by the third time cutting it out. I just wanted to run out screaming and pulling my hair out.
Thats tough. :P
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The long version of the Ohio Players.
Holy crap !
Those guys look like they got into a fight with a Bedazzler - and lost.
The four cats doing the "Rerun" dance towards the end were hilarious.
Funk FTW.
Update on the flame light in the OP.
This is what song I thought of when I saw the title
Nice flames OL
looks awesome. someday I might to try it in reverse, on a baked light 
I was hoping it would go well, as I thought it would give many people an option for being creative with logos, names or graphics, on smooth body lights. I do not believe this could be done over knurling or anything like that, but any smooth section could be done. It will just take some practice. The tape I bought was 2" tape, but it comes in all widths and a small roll is not too expensive, especially if you can get free shipping. Overseas might be harder to get.