Who took my Moon Jar - Earth to Earth

I went at 6am this moring to document my new environmental art project Earth to Earth on Clegyr Boia, but the Jar had Vanished! Who would take a large heavy pot from the top of a hill? Did they think someone was out for a walk with a 20kg pot and just forgot it? Anyway its gone and I hope that whoever took it enjoys it for as long as it lasts...