Re: advice for sitting through a long tattoo?
the best thing i've ever done is plug in some headphones and crank up the volume. the buzzing noise irritates the ever loving crap outta me. make sure to eat well before hand. personally, i don't recommend showering that day unless you really need to (seems like it hurts more when i do, but that might just be me). be hydrated.
i have my own methods that i use on top of these, but i cannot, in good conscience, recommend them to you.
Re: advice for sitting through a long tattoo?
The longest tattoo I ever got was 3 hours on the back of my neck, the best advice I have is to like your tattoo artist dont just settle for whoever is there bring your phone so you can text ppl, a drink, and stuff to read or listen to.