I think the potential for personal production will be best demonstrated by things that MUST be customized.
Here's one idea:
Flat, fresnel-principle satellite dishes, customized to your location and the surface you want to mount it onto (typically your roof, but it could be a wall).
Accurately measure the orientation and angle of the surface you wish to mount the "dish" on. Software calculates the precise 3D angle the dish needs to aim at. Enter your precise longitude and latitude, as well as the geo-synch satellite's longitude. Software then calculates and generates a fresnel reflector design, then segments it if it has to be made in smaller pieces. Print the parts. Fasten the parts to a weather proof backing and fasten the whole in place.
Note: surfaces must be smooth at microwave wavelengths!