I (sort of) did this.
When I wanted to get my first tattoo done I was on holiday in Spain and had no access to a printer, so I brought my laptop into the tattoo parlour and just showed the guy the picture on the screen. He drew it out freehand in a couple of minutes and did a bloody amazing job.

Side note to this story: I was back in Valencia a couple of years later and wanted to get another piece done, but I'd lost the guy's business card, so I spent a whole evening wandering around the quarter looking for him. I didn't find him but did find another parlour, so went in on the offchance that the artist was working there now. When I showed the owner my tattoo to see if he'd recognise the artist he said "Oh no, that wasn't done here - it's much too good."
( .Yeti. El amor en los tiempos del cólera, Wed 26 May 2010, 14:36, Reply)