WHAT IS CARTONIC? Cartonic 3D puzzles are the easy and eco way to create a genuine piece of cardboard art. It's a pre-cut kit of cardboard slices, as simple as 1-2-3. During creation, you will literally witness its formation layer by layer. Once you're done, you can make your artwork even more unique by painting it or enjoying it as is in your home decor. But we should warn that you might need a new one right after the assembly because the process is kind of addictive.