Tattoo under UV

Most common advice I've heard is: go to an artist and have them draw the design on in non-toxic (but at least semi-permanent) marker. And for the love of god don't ask them to do it for free and see how you feel after wearing it around for a few weeks

You can get a temp design at tattly [dot] com. Or have a henna tattoo done. I’ve hear good things about tattly but haven’t tried it yet. Henna will last 1-3 weeks (depending on your skin and where you put it).