They usually cremate, then pick up the bones with huge chopsticks. 
Put them in an urn and then put it in a box with everyone elses. 
At least that is what my family does. 
The headstone always gets updated. 

Satosora

Photography

Phone photography  (Japan)

Karnaras

That’s pretty neat. I mean in that in the most respectful way possible. I heard
It’s tradition to pickup the bones of your loved ones with chop sticks and put them into a ceremonial urn right? I wouldn’t mind having that happen when I pass.