... your preschooler brings this play-doh sculpture home and you think, "That's a remarkably good left clavicle!"
Seriously, though. It's got a bulbous medial end, a tube-shaped shaft, and a flattened, anteriorly-projecting lateral end. It's creepy how much it looks like a clavicle. Is this the osteological version of pareidolia?
(She told me, by the way, that this is the Very Hungry Caterpillar.)