ask yourself why you want a tattoo, is it to be in with the crowd or have you wanted one for a while, why do you want a small tattoo, would you be embaressed by it, or just hide it at work? designing your own tattoo is definetly the best way to go. you cant get more sybolic than your own creation. think about what you would like, start looking at other peoples tattoos, size, shape, location, colour. tattoos have now become so common place they no longer mean what they once did, in the last few years everyone and his dog has been inked. to have a tattoo thats different or extreme today requires drastic steps.
i had my first tat at 14 which i regret as i chose some stupid flash, i have since had to have some large tattoos to cover them. my advice is if your under 18 wait, if you've only just thought about it give it a while and be sure, dont just walk into a tattoo shop and get a tattoo that you have enough money in your pocket for, as most people do on their first tattoo. i love tattoos and have designed my own and for others, but they're not for everyone. its a personal choice. have fun:-)