interesting find, id say by the ring on the top it was either on a necklace or keychain. i have never seen anything exactly like it .
but i did find a plastic item about the same size labeled " Great smokies National Park " and is was as i said plastic but had a metal insert , after i washed it up and got all the dirt out the only thing i could see it do was make a lound " CLICK " when you pushed the metal down. so i assumed it was a clicker noise maker .
my point is , it may be a odd thing that does not make sense ..lol
if it wasnt for the emblem on it id say it looks exactly like a razor blade dispensor ..but that makes no sense.