The One Ring goes on vacation

First post, so apologies for any mistakes...

Weird things tends to occur around my mother. Either she lives her life as a dedicated, hard-boiled practical joker, or she is a crazy magnet. Here's one that happened on summer vacation when i was a kid in the 80s:

We were driving through Austria and had stopped at some scenic spot to eat. My parents spread a cloth on a foldable picnic table, and cooked coffee and eggs on a camping stove. My mother took off her wedding ring and used it for an egg cup while we ate. It was a thick, smooth gold ring, and the egg balanced nicely on it.

After the meal i picked up the cloth to shake off the breadcrumbs while my parents packed up the food. The ring was in still on the cloth, my mother shouted out just too late, and it sailed off into the bushes. We spent hours searching for it, but it was gone. Needless to say, she was quite pissed.

She found it again eight years later while clearing out weeds from a flowerbed in her garden. It was buried in the dirt among her roses - in a different country, two thousand kilometres away.

There's no doubt it is the same ring; the inscription has my father's name and their wedding date - it is an exact mirror of my father's ring. She still has it today, but do not wear it.

While i always look for mundane explanations, i have no idea what this is. The only thing i can think of is that she went and got a new ring as a prank and has kept the joke going for more than twentyfive years. But this is far from the only anecdote surrounding her; i have witnessed a couple of them myself - including a really mind-bending, spooky synchronity story that built up over several decades. But you never know; perhaps she is laughing her head off after messing with us all our lives.