I don't know exactly what you're looking for, but I have a fellow widow friend who makes her own (beautiful) glass beads, and has worked with cremains in the past. It's pretty cool, actually! If you're interested, I can get the link to her FB page (for her jewelery making).
I have no experience with any of this, as my husband was buried, but I like the idea of my friend Cherie doing it because as a widow she is ultra respectful and understanding of how sensitive this can be. Just my 2 cents