Depends. I'm Dutch so I don't tip, ever. And with that I mean, ever. I don't tip in restaurants, I don't tip in bars unless they really really really made an effort (haven't given a tip in about 5 years). It's not a normal thing to do here. I don't have a tattoo but I wouldn't tip a tattoo artist. If he/she says the price, I'll pay that amount of money. For me it's just a business deal. The artist makes the art and I pay the artist for it. Might be cultural thing though.
Depends. I'm Dutch so I don't tip, ever. And with that I mean, ever. I don't tip in restaurants, I don't tip in bars unless they really really really made an effort (haven't given a tip in about 5 years). It's not a normal thing to do here. I don't have a tattoo but I wouldn't tip a tattoo artist. If he/she says the price, I'll pay that amount of money. For me it's just a business deal. The artist makes the art and I pay the artist for it. Might be cultural thing though.