Found this amongst a huge lot of keys I bought and I can not, for the life of me figure out what exactly it went to. Obviously not an ignition key, couldn't find any trunk, gas, or glove box keys that looked like this. I was thinking maybe it went to a kids toy or something, I don't know. Figured I join a Mustang forum, someone has to know what this is. Thanks in advance guys and gals!

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Someone please tell me what this key is/goes to...