One major perk of being online is the ability to buy and sell stuff locally and globally. This is a feature that exists as standalone sites such as eBay and Craigslist or as integrated features, like Facebook marketplace. Online classifieds and listings allow people to make some money back on the things they don't use anymore and they also allow other people to get a good deal on the things they need.

Because anyone can sell just about anything online, there are some pretty odd things that get listed. People are weird, after all. It's hard to say whether or not all of these listings are legitimate or not, but some people will try to make a buck or two off of anything, so it's possible.

These listings can be found on many sites all over, and so many people have collected them for all to see and wonder about. Here are 25 buy-and-sell listings that are just kind of… strange.