I don't really consider myself an internet marketer, so, no use for me, however, I can see this as being BIG ~ as in a million dollar business for you online guys.
It's applying QR codes to grave headstones and linking it to a mobile/online memorial.
Here's a link to a random website I found online:
Preserve your loved ones memories with our QR Memorials
Not my cup of tea, for sure, but, for you tech guys, I'd be on this one like white on rice