We’re joining in with TinkerLab’s Creative Challenge today with an egg carton treasure box make-over. As soon as Rachelle laid down her challenge to see what we could make with egg boxes my girls were united and divided. Both wanted to make treasure boxes, but each with a very different style to match their individual passions. My princess-loving 5yr old made a treasure box fit for the crown jewels, while my adventurous 9-year-old went for a pirate box. Here’s how they transformed their egg cartons.