Introspective memorial block

People often want some memorial to record their existence. In the old days there were less people, so there was much more space to go around. There was room for those who wanted it to be buried in large plots, with a gravestone or other monument.

Now, in many places - including the UK, there price of land has increased such that few can afford this. Furthermore, people are upset when these graves are disturbed for other development, and the gravestones reused for walkways or whatever.

Instead, many people choose for their bodies to be burned to ash, which is then variously scattered in favourite places or stored in a pot on a relative's mantelpiece or shelf. I would like to propose a further option for cremated remains, by which people can feel useful as well as have a documented place for loved ones to visit.

It is possible to set metal text into cement paving slabs - I've seen some in the pavement in a street near my house. It should be possible to set a short personalised notice into a cement paver or block for a relatively small amount. Furthermore, concrete can incorporate a fair percentage of ash.
I'm sure you'll see where I'm going with this, but to spell it out I propose that small standardised, labeled blocks could be produced, each incorporating the mortal remains of one person. These blocks could be used to make park walkways, or perhaps low walls in some scenic area. As the block is the combined memorial and remnants, they could be respectfully moved on for other purposes without distress to anyone living in the distant future.