Ellis, your face tends to slim out when you have it wide open like a muppet!!!
If only you could get me to share the picture of me imitating Goofy at Disneyland!
Thanks for the hints, guys! What confused DH and me was that there were a ton of them that just had the image, and then a ton of them that had the triangle around them. Were they saying "Drink!" or "Don't Drink" or "Drink if you look like a Frenchman/Cop/Student Prince" or "Drink if your mouth hinges like a muppet!"
I'd think graffitti too except that there must have been about 50-100 of these along the walkway and they all looked exactly the same, like a stencil had been made. Some of them had that traditional German script under them. Interesting...
Thanks for the help, A broad! I hope your friend can figure it out...it's an interesting mystery! (can you tell that I loved Nancy Drew books as a kid? )