Minimalist travel camera monopod/tripod
This nice contraption is incredibly simple, yet surprisingly effective. It replaces a monopod or tripod where you don’t want to carry a cumbersome piece of equipment. Basically, you screw the spool onto the base of your camera, then you loop the other end of the rope onto your foot. With the correct cord length, your camera will be stabilized because it will be held down by the string as you push it up.
Minimalist travel camera monopod/tripod [link]

by Robert
"The distance is very far. I would have no doubt that you could control it from 100ft -200ft or more. ..."