What kind of craft would you design to travel through time and space? How would it work? What would it look like?
Well, it would have to be dimensionally transcendental, it would work...erratically, would be the generous way of putting it, and it would look like a blue police box (but, per the first point, would of course be bigger on the inside than the outside).
Quelle surprise, I think. Wonder how many other people have made that suggestion.
(Well...if the police box isn't available, I'd go with a DeLorean. But I'd be thinking of the police box.)