This is my attempt at building the Death Star. It seems to be a fairly simple layout and goes together really well. After deciding which pattern I wanted to use I started by purchasing two halves of a styrofoam ball measuring 12" in diameter. As you can see once the panels were glued together they pretty much slipped right over the stryofoam halves. The beauty of this is that if I screw up I can always reprint the panels and start over. The template does not call for a trench so I am attempting to design and build my own using thin cardboard cut into two circles. I could sure use some pointers so feel free to critic my work. I'll post more as go. .