My little Finn is into all things Space related. He spends hours in a cardboard rocket we made for him at the beginning of the year (an empty booster seat box, with a door and window cut into it).
Today we to create a space control center for him. The helmet we made by attaching empty paper rolls into a plastic 'builders' helmet, and for the visor attached some clear plastic to the front with masking tape. We covered the paper rolls with silver contact (although aluminum foil would also work).
For his control booth and computer screen, we used an empty fruit box and another sheet of clear plastic over the top of a drawing of a rocket blasting off (or any space scene). I also drew a keyboard, some buttons and dials on a sheet of paper and attached it to his desk.