What an interesting story, and an interesting problem!
I would suggest a project name of "Missing Cremains". It's more descriptive for those who would be interesting in finding it.
I might be interested in helping such a project, with I hope some others as well. However, before I jump in, I have some concerns relating to privacy. I'd like to see to some suggestions, either from you or interested others, on how such a project would tackle this problem. Either the privacy of the people who find cremains, or the privacy of who they might belong to.