I just had a thought, while not quite similar in shape, but may hold tight. What about a back to a tie tack or a lapel pin?
A few examples:
https://www.hopedesignltd.com/produc...e-mp-lapel-pin
https://www.defencemedals.ca/collect...er-silver-leaf
https://sarahstreatsandtreasures.com...gold-lapel-pin
Janey - Neat people never make the exciting discoveries I do.
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