But what was this? The computer's face recognition program thought there was a face peeping out of one of the bumps!
Da Dum (creepy music rising to a crescendo)... when I zoomed in on the little bump, it looked like...
an alien dog.
Do you see the ear hanging down at the right? The long line of the muzzle?
I think it might be a visitor from Penny's planet of origin, perhaps the Canine Leader who sent her to explore Earth and see if it was fit for Doggy Colonisation.