I've also been wondering about this. I'm an endowed member and have been married in the temple, and I really want a tattoo. I understand that President Hinckley advised against it, however the prophets have made comments about some topics (such as intercourse) that are not the Lord's view on such things. I do have a strong testimony and want to keep attending the temple, I'm an artist and tattoos appeal to me. No harsh judgement please.