Here is one I helped design for the team I was on last year.
Not shown (to the right of the laptop) are 2 Attack joysticks velcroed down, a AA battery box under them for the LEDs a USB hub and the charger for the laptop. This year there will be an outlet available for your laptop so thats even more reason to have a spot for your charger on your operator console.
Something to keep in mind, it can be no bigger than 60 in. long by 14 in. deep (pretty sure that more than last year) per R94