So... the only rubber band that I buy is the "Goody" brand.
These seriously are the best rubber bands EVER!I was out of rubber bands one day and I needed to go to Sally's, so I thought I'd get some rubber bands there (thinking that a beauty supply store would have good one's) I bought a big bag and they were HORRIBLE ! I think I broke more then I actually put in here hair, she even came home from school and some of her ponytails had fallen out because the rubber band broke. I have also tried other brands of rubber bands and they either break or are too rubbery and hurt to take out. You know what I mean to rubbery right? Well I love these because they are silky and strong, so when you take them out they don't hurt a bit and if it is not rapped to tight they just slide out when you pull lightly. They also NEVER BREAK, it's really tough to break them. Another story... sometimes when I do messy buns and my husband has to take her hair out for a bath, he can't get the rubber bands out of her hair he tries to just break them and he never can so he ends up cutting them out (I now take out the messy buns:)
Anyway, they are great! I'm sure they come in different colors but I always buy the clear because it matches everything, they also come in different sizes, I used the really small ones when she was a baby and they worked great, they stay in and don't pull out the hair when you take them out.
You can find them almost anywhere.