Zodiac symbol tattoos are very popular these days, and for a simple reason. With tattoos becoming more acceptable and more common, people are trying to find a design which is highly personal. You don't want something that any Tom, Dick, or Janet might have, you want something which says "This is me!"
And what could be more personal than the representation of your birthdate?
If you were born between the 21st of March and the 19th of April then you are an Aries. Aries is actually the first sign in the zodiac, and is a fire sign. It's ruled by the planet Mars and its symbol is the ram.
Already I can see hundreds of different designs to portray who you are and what you stand for. A fire sign ruled by Mars? Well, red is obviously your colour! How about a few flames? A ram's head emerging from a background of flames, perhaps. Or maybe just the horns. A more symbolic tattoo could feature just the horns, wrapped in fire.
Mars is your planet, Aries, and we all know that Mars is the planet of war. So maybe your tattoo design could combine weapons and flames? A flaming sword is an old favourite, but if you do a bit of brainstorming then you can give it a twist and make it unique to you.
Of course you don't have to think outside the box quite so much. A simple design with your animal, the ram, can work just as well and has the advantage of being instantly recognisable in a way that some of the other designs may not. Here's an example of such a zodiac symbol tattoo. It shows that you can get extremely creative even just by sticking to the basic Aries themes.
I hope I've shown the kind of variety of images you can get when you start from the symbolism of your zodiac sign. If you're planning on getting such a tattoo then the next step is to check out some of the on-line image galleries and see the kinds of designs that appeal to you.