Potato buddies?

Two carefully placed potatoes nestled at the base of a tree near the river. Enh?

Is this part of some Wiccan ritual? That's my best guess after coming upon this strange little twosome at the end of a good run (first really good one I've had since getting back on track after a three-week cold/flu/misery). They don't look like they fell out of a bag, they were definitely arranged this way.

Maybe some kids happened to have two nice Maris Pipers on them and thought, 'Hey, let's give the tree some balls, henh-henh!' (My second-best guess, but since when are spuds the must-have accessory for today's randy teen?)

Just another reason why it's fun to have a decent cameraphone...