Where can I get a iphone case?

I've had an iphone 4 for about a year and a half. I had a otter box but it was to bulky and heavy so i got another case and i had that for mabe 6 or 7 months and it broke. So i need a new case but don't know where to get it. I checked amazon. I don't really like ebay and i can't think of any where else to go online. My budget is $15 and less.
thank you
~ starfish

Added (1). I prefer not to get it for the mall because they are over priced its like $30 for a case.

Added (2). I was thinking about getting a british flag case what do you think?

You can get them in many places like: icing, claires, target, hollister, etc.definitely in the apple store. Just look around in the mall.

You can really find them almost anywhere. Cases.com has a ton of iphone cases. You can find cheaper ones at the kiosks in the middle of just about every shopping mall.

You can get them from any phone accessories store or from the same place from where you got your iphone.

Hello kitty Old Navy and burlington has some cool ones and walmart and tj maxx and lots of places

Iphone is the android new technology just like as nokia and samsung