Anyone know what this is

[PA4476]

I bought a bunch of these years ago. And forgot about them.
I was looking for something else and found em again.
I don’t remember what they are or what they’re supposed to be used for.
Anyone ?
Not the dime (before the first comment)

 

[4ssss]

Home made snap swivel or a crab line/trot line clip

 

[C'mon man!]

Nah, it's clearly a Garth Brooks paper clip.

 

[rhaney02]

Pocket speculum?

 

[Nat]

 

[BDR1]

It’s a dime.. how much did you pay fer em?

 

[Gingerbeard Man]

Looks like a fishing line connector of sorts?

 

[Wile E. Coyote 5.0]

duwadinum cokrang