Shire's golden pig

{1}, {t}: Create a Food token. (It's an artifact with "{2}, {t}, Sacrifice this artifact: You gain 3 life.")
Whenever you sacrifice a Food, create a tapped Treasure token. (It's an artifact with "Tap, Sacrifice this artifact: Add one mana of any color.")
"Before you ask, yes, that's where our money comes from, and no, it isn't disgusting."