Knitting that looks like boobs

Ever see a bit of knitting that looks a little bit familiar and then suddenly realise why?

First off, thanks to some unfortunate self-patterning yarn, I present the nipple hat heel sock, courtesy of Knitty.

Now, those with a bit of a chest may be aware of the Doreen bra.  Built like a pair of cones made of scaffolding and designed to shape your boobs into a pair of zeppelins.  Here we see the shape also works as a hat

and also as a rather nippular ball  from Berroco