hm, cool idea (especially now my laptop psu is broken: it was a transformer wich delivers 16 volts; nowhere to get such, and I can't screw it open because it's shut tight with no screws whatsoever )
*sigh* :-(
another invention I was thinking of:
"Rent-A-Factory" (tm)
An all-round factory with sets of all kinds of robotarms, transport bands, tubes, cooking pots/ovens etcetera.
And it should be made in a way that you can configure it automatically to make a certain product.
It should be very usable for small production lines