Before you go out and buy wedding flip flops, you'll want to find out what they are worth. A lot of the time people don't like shoes like dressy ones. That's because they get uncomfortable and are hard to walk in, unlike flip flops.
There are a lot of great flip flip options, and you can find things like thank yous on them and can give them to bridesmaids. You can figure out how to get them all personalized if need be, so that each person has a special pair. It's a lot of fun getting custom sandals made, you can either turn it into something serious or something fun depending on who they are going to. You'll have a lot better of a time with flip flops if you go with something that matches your personality and style, so you can be a tad more confident when walking down the aisle.
Don't work with sellers of anything that are brand new and selling through a third party service. You need to know that they can be trusted to help you if the order is wrong. Some people even just take the money and run, which can sometimes be refunded and result in the seller being banned. Whatever you do, just stick to good vendors and if you do have a problem the seller won't help you with it's best to get into touch with someone higher up than them to get them to make it right. Wedding flip flops are important to get information on before you purchase them. You don't want something to show up in the wrong color or that's very cheap to where it falls apart on you. Go with a middle of the road solution and you should be fine.