Strolling with a skeptical biochemist
My guess was sponge... The correct answer would probably be last on my guess list.
I feel shamed. Howe come nobody told me about Panda's Thumb? Oh... maybe because I don't talk to people. Thanks for the intro, though! Subscribed now.
My guess would be one of those weird stone-looking succulents...Gonna go over and check...
Hell yah! I KNEW hanging out in the gardening section of Home Depot in my childhood while my parents were shopping would pay off someday =P
It is a doughnut. And old one at that - do you see mold growing at one side of it?;-)
It looks like a variety of lithops, a succulent.