Reminds me...
I used to frequent a jazz club in Manchester (PJ Bells, now Matt & Phreds). There was a stone ball behind the bar with some rough edges on it. I got to know Phil Bell and one day asked him what it was.
Apparently years back, him and his good mate (Ian Lavender of "Dad's Army") were on a lark in Germany and after a night on the beers, were strolling back through a park where they encountered some big, Teutonic statue of a naked bloke.
Finding it a bit too, y'know, Ary4n M4ster-r4ce, they decided to climb up and smash it's boll0cks off with a brick. Which they did. They kept a bollock each, and this was what was behind the bar.