Or a blimp with a thin wire in resonance and two fibers? If you don't need much power, the thing should weigh in at under 50g, which would allow a blimp the siz

Or a blimp with a thin wire in resonance and two fibers? If you don't need much power, the thing should weigh in at under 50g, which would allow a blimp the size of a large kitchen trashcan (50l). https://en.wikipedia.org/wiki/Single-wire_transmission_line https://en.wikipedia.org/wiki/Single-wire_transmission_line