According to a TV advert, Maybelline are doing something similar although, when the model on that advert reveals the result, it looks as though she's been attacked by two huge black hairy caterpillars. 😳
My eyebrows are blonde so you can't really see them unless you're nose to nose to me (which isn't likely ) but because I have a fringe I don't bother to faff about with dyeing them etc. I did use the benefit brow stuff once but it looked really odd to have visible brows. I suppose f I ever decide to ditch the fringe then I'll have to consider using something, but it won't be a tattoo.
I knew this bloke once who bought a dye for men & his wife used it on her brows. Bingo! The stuff dyed the skin as well as the brows & she had to use everything she had in her stash to tone it done. Nail varnish remover did it in the end. Laugh!