Fred, bear with me, my Will is not ready yet!
Indeed I have still to decide whether to attend or not my burial ceremony.

Now, your question triggered an archaeologist reflex, unearthing memories of a favorite song by The Fugs, in the 70's:
"Bury me in your apple garden
that I may kiss your lips again."
A kind of makeshift musical amulet...

Illustrating the thread:
Ornamental plaque in the shape of a skull
Bone.Tibet.Undated
Size: 35,2 x 32,3 x 13,7 mm

Actually, this is at the root of the centuries old worship of bodily remains of saints: the so called relics.

Illustrated: detail of St.Deodatus relics. The display of his revered remains at Moosburg an der Isar, was cancelled and the skeleton eventually scelled out of sight inside its coffin, after it was ruled disgusting by an anglican minister visiting the town in 1840.(Trésors des Catacombes, by Paul Koudounaris, Ed. de la Martinière, page 143).

Of course, in case of relics of the saints, it is their fans that are responsible for their sacralization, whereas Art goes a step further, and makes himself an amulet -- out of a sublimated self-esteem, may I ask?
This we may link to the Japanese buddhist ritual of making a mummy out of oneself (with the help of your friends): search for sokushinbutsu if feeling intrigued. The second pic is but one example of the outcome.

It may be possible for him to create memorial beads as well.

Several marble collectors, at their request, have had their ashes added to private marble runs . . .