Unusual item that everyone should carry

I had this thought while reading another post so wanted to pick everyone else’s mind. What is something you think is import to have kind of a EDC item that is unusual?

For me I jokingly call it my emergency hammock. I have a single person hammock, 2 10’ straps and 2 carabiners that all fold up to about the size of a soft ball that I keep in my backpack that I usually have with me. If I’m ever stuck somewhere for an hour or more, all I need is 2 solid objects less than 30’ apart and I can kick my feet up. Straps and carabiners can also be used for tons of other things.

So what do you have?