Curvilinear Cardboard Construction

We have a big box in the living room this week as a little house and playroom for the toddler among us. With each passing day it gets a bit more decoration and gains new architectural feathers. There's a window cut high on one side, the french double doors on the other end and lots and lots of drawings, inside, outside, on ceiling and floor and walls. Becca devised a folding table in the corner out of two curves of cardboard, which when up help strengthen a substantially weakened structural integrity. The leftover material of the french doors forms a beautifully curved support to a little cantilevered roof.