I still have my pet rock.
.
Lost mine decades ago.
I think that I just threw it away.
But that was long before I realized how dumb and naive' people are.
I should have kept it to sell later to some dumb sucker.
"WOW! - AN ORIGINAL PET ROCK!"
Note: I personally did not originally pay for that pet rock.
Some dumb 5 year old kid begged his mom to buy it for him...
:-)