Building block puzzle box

If you love puzzle boxes then you probably also love building blocks. I made this free-to-download building block puzzle box to help introduce people to either pastime. The nubs slide to lock the lid in place. It's the perfect size to hold a pack of cards or other small trinkets. You could even oversize the models to store whatever you want in it! If you print and assemble a copy, I'd love to see it. Happy puzzling!