I've seen memory days and "parties" a lot on USA crime programs (I don't mean fiction).
They wear t-shirts with a photo of the deceased and let go of balloons, and have a BBQ or something.
This might sound daft, but... When we had to out or cat down (Chloe was 13) and even rabbit (Barney was 12/13) after a private cremation, we had a day out in memory of them.
So with Barney we went ice skating (yeah I know, random or what) and Chloe we went to a tall place (she liked climbing high and pretending she was stuck).
Now it.could be you rent a hall, and show their fave film, or have a.party with fave music.
You of course can have them home in their coffin, if you'd rather than in a funeral parlor.... Of course there is a delay between dying and being hurried.
You could donate to science, and they sort out the rest!
I want.to be sent.to a body farm! It's where they do stuff with dead bodies to help find out how long and how people died, and how being "disposed" of in different circumstances affects all sorts.
There's plenty around to research unconventional burials or wakes.
Our Welfare State. Is it broken?