Piero Manzoni did this in 1961. It’s really full of his own shit. He sold them for their weight in Gold back in 1961, which was about $37.00
It gets better:
They auctioned can # 83 at Sotheby’s in 2007. It sold for a little more than 97,000.00 Euros.
I want to hate Piero Manzoni for this. I really, really do. But I can’t.
Ultimately, it’s hilarious what people will spend money on in order to impress their friends.