HThought this might be helpful but it was not
E
Your heart was in the right place. 
CStirring stick belt?
EIt’s more the brooch element, where it’s secured with a separate skewer of some kind. I hadn’t seen it before the kapital belt and didn’t know what to Google to find other examples.
CI was joking because the pin looks like a metal stirring stick/latte spoon.
EOfc . I do kind of just want the spoon belt.
. I do kind of just want the spoon belt.