Street artist Posterchild has been putting up Mario question mark blocks in public places for years. His site even has instructions on how to make your own.
This month, he’s started putting up Mario blocks that are already punched out, and have a “fire power” flower popping out of them. Guerilla Gardening meets street art!
I seem to remember a couple of teenagers getting charged with Mischief for doing this exact same thing, wonder if the kids got the idea from posterchild.