$10 says someone’s going to disable the safeguards and do this:
That’s just one big bucket of Nope, right there.
Since I doubt this will ever be one of the stock GF materials with bar coded speed&feed parameters, please take lots of video of the test passes you go through to nail them down. 
I’m sure the leather engraving setting would work.
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I saw this a while back, I wouldn’t do it but gave me ideas. like etching those press on nails.
Idiots!
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Just last Thursday I accidentally put my index fingernail in the path of my 60W laser at half power (before focusing).
It hurts. A lot. For quite a while afterward.
Granted, to get something that looks nice you will probably run at lower power. But it will still be less than pleasant. And stink too.
regarding the smell - a couple of decades ago my mother worked at a clinic where among other things they did tattoo removals. back then they used these devices that looked like a soldering iron to scar out the ink. the smell was remarkably repulsive.
Burning protein, has the same root smell if it comes from bacon or rino horn.