Step 4: The "head"
The original approach was a vacuum cleaner carpet attachment with some light fixtures welded to it.
The later discovery of two smaller matching vacuum cleaners quickly rendered this first idea obsolete.
The two were stripped of paint, cut in half and welded together. The resulting shape just happened to be the perfect shape to house a standard car head light. Some retaining rings and hardware needed to be machined to fasten it in place. The holes where the hose used to attach to the vacuums also turned out to be the perfect size for some orange LEDs from Kragen.
Finally, the original windshield was ditched and a new one was made from a piece of acrylic and bent slightly with a heat gun.