Here are some pics from a recent build of my 90’s Cyclops belt template:
The belt was made primarily out of 3mm and 5mm eva foam sheets. For painting, I started with white primer ( I might also recommed using white foam instead of black as a lot of yellow paint is so transparent it can be hard to cover the black), smooth and base coat with sunshine Aura, then a couple coats of Folkart medium yellow, some initial airbrush weathering with Americana bright orange, then more weathering with Spectra tex light brown. The red was System 3 cadmium red.
The template for the belt can be purchased here: thefoamcave.com/product/Template-for-cyclops-belt