Sabrina and her crafty friends transformed cartons into a castle, an airplane, and a car.
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Sabrina designed the letterpress invite for James and Alex. The last line was B.Y.O.B. -- bring your own box!
Small gift boxes filled with chocolate airplanes and buses were topped with homemade buttons that matched the party.
Birthday boy James is chilling in his super-cool, cardboard race car.
Folded paper hats were worn by both young and old.
This cake with a red smiling balloon tasted nothing like cardboard.
Originally published in the April 2011 issue of Parents magazine.