How do they do those lip tattoos? Do they do them on babies or under some anesthesia I would imagine? I've seen them on ex racers, and from what I know of tattooing, it's not a fast process... not as fast as a freeze brand.
I don't know when it's done, I'm sure it's done with an anesthia of some kind though. Tattoos on goats and dogs ears are done with a press type affair that has needles on the inside. You can change them around to change the numbers and symbols. On goats there is a purple ink on the needles.