Bottles

So after lots of research I bought the nanobebe bottles. I really thought they'd be best helping my little one with both bottle and breast feeding. However after a couple of uses I hate them. I have decided to try a different brand, and was wondering what I can do with the nanobebe bottles? Even though I hate them doesn't mean someone else won't. Is it possible to resell bottles or give them to a second hand store? I'd really hate to just toss it all. I'm going to keep trying with them, but we shall see once the other bottles arrive.