I bought some Hiya hiya needles from a gal on Etsy. Last night I noticed she gave me a little trinket in a few of the packages, one had a stitch marker, one a little cable needle, and one had this thing. I've looked at a lot of notions online, and never seen anything like this thing. What would it be used for? I'm stumped... It's on a CD sleeve, to give you an idea of the small size. Anyone know what I would use it for?