This thing is finally all together. The watermarks in the fretboard are all polished-out and it is shiny again. The only thing missing is strings and a name on the headstock.
This one is kind of a joke and an experiment in just how cheap you can build a guitar. The body is dry-erase board over plywood - no finish - with Tolex side binding. Dry-erase board is Masonite covered with Melamine. The neck is 100% Radiata pine, even the fretboard. The "inlays" are glitter and CA glue. The pickguard is the other side of the dry-erase board - 'chalkboard'. The pickup mount is a 57 cent switch plate.
An electric guitar body serves several purposes. It provides a place to attach (and hide) hardware and electronics, and provides a counterweight for the neck, specifically the tuners out there at the end. It also provides enough weight and bulk to stabilize the instrument while it is played, either sitting or standing, while at the same time being not too heavy or interfering with natural playing motions and access to the strings. And needless to say, it must be strong enough to resist the effects of string tension, which can be 100-200 pounds or more.