One of the common traits among the lots of scorpion is they like tattoos and will spend any amount of time as well as money to get their desired tattoo.
For scorpion tattoo design that matches their personality is the symbol of Scorpio itself. Out of twelve zodiac signs the most complex sign is of Scorpio. Most of zodiac sign has one symbol associated with them. Like Aries the ram, Sagittarius the archer etc. But Scorpio has more than one symbol. Scorpion, Phoenix and Eagle are the symbols of Scorpio sign.
There are great scopes to design the scorpion tattoo as artists are not struck up with only one symbol. With three symbols there are lots of permutation and combination.
Finding the different types of scorpion designs is not difficult if you have access to internet. There are lots of free tattoo design sites that hosts many Scorpio tattoo designs. But I have found that the sketches in these free sites are mostly repeats. So, if you want something unique then the best approach if budget permit is to hire a good tattoo artist and tell him about your idea of scorpion tattoo.
From your ideas, tattoo artist will often come up with some fantastic design which is not only unique but looks quite amazing. If you are not satisfied with the first rough sketches of your artist then don't hesitate to tell him. Tell him what you like and what you don't in particular drawing. This way your artist will get the fairly good idea of what exactly you want. It is quite possible that you have to ask for 3-4 revisions before you get your desire scorpion tattoo.