good shape

We make shapes with play dough and pipe cleaners. Hank has the typical toddler toys that support the construct, shape sorters and wooden puzzles. But he's mostly learned about shapes incidentally. And he seems to have a mild obsession.
First it was stars. He still points them out all over the place, never missing the one on the cardboard coffee to-go cup.
And then it was circles. Circles on necklace chains and on billboards and in his bowl at breakfast.
Currently it's ovals.  He wants to build oblong train tracks and identifies eggs and mirrors and footballs and sinks as ovals.