I guess you'll have to just go look and hope you find the one that says "R. Mutt" on it.
Samuel Stupid
It has recently been discovered that the very famous Marcel Duchamp’s Fountain is in a bathroom in the Nest, so it’s being officially put on display for art lovers to view right here at our beautiful university. Tickets to see it are free but its location changes every day – you never know which bathroom with a urinal might have it at any given time. So I guess you’ll have to just go look and hope you find the one that says “R. Mutt” on it. It’s also an interactive exhibit: you can urinate directly into the special famous urinal in a private stall.