Search for lot of Morocco 10 Franc Silver (1347-1352 /1929-1934)

Hello,

this is the coin I'm looking for
https://en.numista.com/catalogue/pieces2324.html

I hope not to generate an uproar with this, but I use them to make coin rings. More accurate the attendees of my workshops do (I give goldsmiths workshops as additional income).
So I basically search for a source to get them "by the kilo" so to say. They don't need to be in "collector condition" since these are quite durable and where circulating coins, I thought they might be somehow available as lot in quite used conditions.

Any hints how to find such a source?
(I know that some dutch coins are sold in a mixed bunch as bags 1kg each, where you pay them by the silver price. Like one 1kg contain 780gr of silver so you pay 780gr of the days silver price plus shipping. Sadly those coins aren't that beautiful as the Morocco coins).

Let me know if I accidentally violated any rule or politeness .

thx
mclien