Mom said there is a Rock club here in town.
Two groups of Rock painters and finders of those painted rocks too, post on FB. The members including mom- mostly all (Mom just finds them, she doesn't make them) paint rocks and leave them in plain sight in parks, sometimes sidewalks, outside (only) stores, parking lots in good places...and mom said she found one on top of the mail collection box once.
They are such fun to find. You find it...keep if you want or re-hide one (in plain sight for kids and adults to find) so that they have the fun of looking for and finding them. You usually post a picture of what you found in FB on the forum.
Now..to the pictures.. Mom's keeping these! They are not painted except the background. Things are glued on. Mom loves these too.