Dingleberries

The little round fecal pellets of animal droppings such as sheep, that have the appearance of a berry lying in grass or still hanging from or in the vicinity of the woollen backsides they emanated from.

Clueless person: Oooh look I found some magic berries in the long grass in yonder field... they don't taste as good as they look.

Farmer: Yep ye found some dingleberries from m' dingleberry field. I hope ye closed the gate or all m' sheep will scarper.