I have my ears done twice, im going to go for a third when i back at uni. I only wear studs in mine. Or if i wear a small drop earing on the first hole i'll make sure i'll wear only plain studs in the back ones.
I think it can look really chavvy but it wont if you make sure you keep things simple like i do lol. Im a girly girl so none of that chav stuff for me lol. I just keep some diamond type studs in my ears.
O and im sure im going to get comments from "unbelievers" about the third set but thats where i stop lol. Get it done its wicked. Glad others think it looks nice too. Only pleeeease make sure you get it done in a decent place, as if i second hole gets infected it hurts the first one.. I went to Claires accesories and it didnt get infected so thats a good place. Also be careful what metals you put in the back ones, some earings that are fine on my first hole hurt my second one. This could just be my weird skin haha