For the love of egg cartons

My Nan, my dad's mom, was a re-user at heart.  She re-used everything she possible could (and some she couldn't).  She used styrofoam meat trays, butter containers, bowls, and egg cartons just to name a few.  Every Easter she would make a bunny cake with 2 styrofoam ears on top of its head lying on, guess what, a styrofoam tray.  So yesterday in honor of Nan, when I emptied an egg carton, I handed it over to Grant and this is what he did with it.

A boy after his Great-grandmother's heart.