The options are enormous:
Ocean “Reef Ball” – ashes become memorial coral reefs
Burial at Sea – either ashes or full body, and the surf board “paddle-out” Hawaiian tradition
Memorial Fireworks Display / Self-Fired Rockets – ashes shot into the sky
Alkaline Hydrolysis (Liquid Cremation)- like a super hot hot tub turns body to ashes

Mourning Jewelry: inspired from the Victorian Era: hair earrings, memory rings, etc
Memorial Diamonds – small amount of ashes or hair turned into a diamond
Promessa – freeze dried with liquid nitrogen

Celestis – memorial spaceflight – ashes shot into the cosmos
Summum: modern mummification

Plastination – become a part of the “Body Worlds” Exhibits
Viking “Fire Ship” – big & small
Driven to cemetery in a Harley Hearse; Buried in your Corvette
I-Can Corp – virtual gravestone, flowers, etc.
Cryonics – freezing with liquid nitrogen (Boston RedSox legend Ted Williams’ head & body is kept frozen)

Tibetan Sky Burial – fed to Vultures
Tide Pool – fed to Dungeness Crabs
And many more…