I can barely draw stick people, let alone a tat..
..however, do you have a usual tattooist that you go to, to get your work done? Most artists that I know of, if you go into their shop and give them what you want, they can actually draw it up pretty quickly, usually either while you wait, photocopy and resize it on the spot, or draw it within a day or so. Atleast mine will do that.
when i got my latest tattoo, the only pic i had of it, was so big, it barely fit on the copier, so he got it on, resized it down to where I wanted it, and was ready to go. If you want that exactly design, they'll usually just copy it, then trace it onto the paper, to make it easier.