Afraid I don't know it, but I'm fairly sure the badge says P.56 not B56
Not that I think that helps much!
Reverse Google image didn't return anything either.
I'm neither American nor a medal guy, but so far as I can tell, I don't believe it's official American military - they prefer the broader long span wings rather than that raised style shown.
Also unusual is the top-centre loop - it looks very much like a pendant from a necklace. The clasp being a safety pin style also seems off, though can't say why. Suppose I associate it with cheaper, mass-market or amateur hobbiest.
The edges in the star look a little off-centre & a bit rounded.
I may be way off the mark, but I'll tell you what my initial instinct was - Small Texan motorbike gang. Amateur-ish design suggests small, for fun production. Option to be worn as badge or necklace.
Lone star state is famously Texas, and the circle could be a wheel.
Wing motif for biker gangs are a frequent occurrence.
But absolutely zero evidence to back it up. If you do find out, do let us know. I'd love to laugh at just how wrong I am! 😅