This plaque is based on the Identity disc from Tron Legacy. I print it with the highlights in a clear-fluorescent PLA so they glow under UV light, but it also looks great when printed in metallic blue. Your choice!
Measurements: 200mm x 200mm x 5mm
I recommend, once you've assembled the plaque, filling the gaps with resin and then sanding it flat. There are two spaces on the back for 20mm x 10mm x 2mm neodymium magnets for mounting on a wall
Enjoy!