What should I do with my iPhone case that doesn't really fit?

I brought an iPhone case that has bunny ears and a bunny tail but it really doesn't fit my phone. It's for a 4/4s and I have a 4. I don't want to keep it because I know it will never use it if it doesn't fit my phone. It's like a half centimeter- centimeter big. Should I see if it fit my friends iphone 5. I don't think it will but it doesn't hurt to try. I don't want to have it collect dust. I don't know if I can return it, it came all the way from Hong Kong:/

Sell it on eBay

Sell it!
EBay, Amazon, whatever. Or you can give it to me (;

Wow that sounds cute. You can give it to me! Haha just kidding. Try your friends' iPhone5. If it doesn't fit, just eBay it