I have not built my first robot yet - waiting for the parts. But I have the plans for my second robot ready. He, just a little ambition :D. My second project will be a prototype for a robot that can be sold as a consumer robot. I will call it Pet - working title.
This is how I imagine it. When you order Pet, it will come in a nicely designed box. In that box you will find a shiny sphere, a little smaller than a soccer ball. One size of the ball will be flat. You will also find a smaller box that contains a base plate with an electrical cable. No on/off switch. No manual.