I won't do this for a cheap price and the tattoo is not also a permanent one, just a temporary ink that can either last for 24 or 48 hours and then it will go out, that is doable but going to tattoo your forehead with a permanent ink is crazy, I can do it with a temporary ink depending on the price and how many days they want me to carry it ($100k is good) but a permanent tattoo with cheap price is a no no.
These are crazy times where people can do just about anything because of money and tattooing your forehead because of money is one of the craziest of them all, you will have to carry the inscription like a slave everywhere you go, I don't think that any reasonable person will agree to such a deal. Maybe some weirdos who likes to appear in crazy manners would tattoo their forehead for an amount that cannot change their lives.
If the ink is a removable one I can consider such a move but if it is a permanent ink then it is a capital NO for me although I know that tattoo inks are removable but consider the pains that you will go through during the removal because the forehead is a very sensitive part of the human body. The people behind such a campaign in the Solana network are heartless and inconsiderable.