Train PenPencil Holder

#DIY A pencil/pen holder that is also a train so it looks nice on a desk. First project on Fusion 360. Not sure how well it will 3D print, I don't have one or any experience 3D printing. The pencil/pen holding carts are (should be) detachable or if the user wants, they can print more carts for storage. Maybe someone more advanced can add to it so that the wheels spin. Again, no experience 3D printing whatsoever, just wanted to practice modeling on Fusion 360. So print at your own risk.