Universal Penis is an involuntary painting on the exterior wall of Dronfield Woodhouse Scout Hut. It has been there for years resisting periodic attempts to clean it off. It has never been subject to a paint-over.
I am sure that involuntary painting versions of the universal penis exist around the world. I look forward to seeing them.
LONG LIVE THE INVOLUNTARY INTERNATIONAL!
Dronfield Woodhouse, UK