QUESTION: Are there any physical coin creators that would be willing to contribute to the process of creating a physical collectible where they would create a portion of the key in a multi-sig coin that would collaborate with other physical coin creators?

Requirement: At least 3 known and trusted physical coin creators would be needed to do a 2-of-3 multi-sig coin.

I can see why those who turned me down in 2014-2015 did not want to participate or just never got back to me. I'm also not 100% sure I would want to do such an endeavor as it would depend upon the terms & agreement and the outlined responsibilities of each party

Sounds like a lot of work.