Mystery Mushroom?

I guess this would fall under the "comma" part of Food Comma, being that I'm not entirely sure this thing is organic matter, let alone edible. I discovered this alien life (?) form as I was pulling weeds in the front yard. At first glance, I pegged it as a big mushroom, about 2 inches in diameter; on closer inspection, I noticed part of the purplish top layer appeared to be peeled off, revealing a gelatinous-looking core. A fallen bird egg? It seemed way too big, and anyway there are no nests nearby that I know of.



Digging the thing out with a stick, I felt a slight resistance that, say, some decaying rubber ball discarded in the dirt might lack. But then its tapered and somewhat pleated bottom end suggested a sort of balloon, and the way the thing feels both firm and squishy reminds me of, like, a silicone implant. Yeah: creepy. I showed it to Mr. Comma, who immediately remarked on its resemblance to a puffball, a mushroom-like fungus. I left it outside overnight and apparently none of the various Eagle Rock wildlife (squirrels, possums, raccoons, skunks, birds, cats, lost dogs) so much as took a sniff at it, as far as I could tell. I know the next step is to cut it open, but I'm a little scared . . .