Big Ben 3D Metal Model. Our 3D metal models are amazing DIY models with stunning details. They are made fom high-quality laser-cut steel sheets. This method allows for amazing detail with parts cut from one or more 4″ square steel sheets. The models stand a few inches tall and make the perfect table-top tribute to your favorite places or times throughout history. The instructions are easy to follow and no glue or solder is required! Simply snip out the pieces and bend the tabs through the corresponding connection points to assemble.