Contact a local church to possibly give a proper burial or farewell.

Sarge

Get a post hole auger. Go down a few feet. Plant the urn. Cover it up. Wipe your hands and forget about it.

The person who's ashes they are probably didn't want to be buried, hence the cremation.

Ther is nothing wrong with geting burnt. Infact I wish it we tree legal for the family to shove me in the oit door wood burner and just dump the ashes in the garden with the rest of them. It has burnt up plenty of critters just fine. Would do the same with me. Save the $ and spend it on something useful not a rock service and such. I thin my son was around 20k in 07. I dont remember if that included the custom ordered stone or if that was around 9 k in addition to?

For me I would rather the kids and future grand kids use that cash for themselves.

That said ther is a benefit to those left behind to have a place to go and visit for a while after the loss that a rock and hole in the ground provides. At least i spent some time standing in the field talking to stones after my son and grandfather died. But gradually that dropped of to nothing. Have not been to the cemetery in a few years now.

I once had the same problem. She had a passion for butterfly's, so I started a butterfly garden and sprinkled her ashes around it.

Whoever that was does not give a crap what you do with it at this point.