On the first day at the Kenyon Review writer's workshop, one of our teachers presented each of us with a tiny head. He told us to hold on to them while he gave his talk and try to figure out what they were.
It turns out that they are seed bombs. People throw these all over urban cities and flowers sprout from them. The idea is to add beauty to places that may otherwise just be run-down. What a great idea!
He told us they were a metaphor for the week to come and all the ideas that would sprout from our heads. I planted my "seed face" when I came home, so we'll see if great thoughts continue to grow from it!