People Share Product Purposes That Aren't What They Were Designed For And Here's 26 Of The Best Ones

Melon baller. It's for making balls from melons but works perfectly to take the core out of apples and pears.

Ive used the same carabiner as a keyring for over a decade.
Its never had to support anywhere near the kilo Newtons its listed to be able to support.
Slipping keys on and off it is kilo tonnes easier and secure than normal key rings though.

Vacuum sealers.

My FoodSaver never sees anything edible. Instead, I use it to protect infrequently used items from dust & moisture, and to make archived papers (taxes, passport, etc.) easier to store. It's also very useful to repackage bulky or specialized cleaning products & supplies & emergency items.

Food, that just gets eaten, usually.

Bubblewrap initially was just fancy wallpaper.

Also, superglue was invented by accident, when engineers couldn't separate glass sheets after attempting to make clear plastic. Later it was used in battlefields to temporarily close wounds.

My dad bought a fruit scale specifically for the purpose of weighing meatballs. His reasoning was that, if all the meatballs he prepared are the same weight, he'd only have to poke one to know whether or not they were all cooked because the heat absorption would be more or less identical.

Scarf hanger = camisole holder.