mini-drones that can attach themselves to take a breather

http://www.scientificamerican.com/article/flying-mini-robots-can-cling-to-your-window-video1/

"...researchers from Harvard University, Massachusetts Institute of Technology and several other institutions have created a minuscule wing-flapping robot that literally turns the problem on its head—with a disklike top that can cling to most surfaces using static electricity, much like rubbing a balloon and sticking it onto a wall."

"The ability to hang from a structure rather than rest on top also provides the MAV with a less-obstructed view of the area below and protection from extreme weather conditions during long perching sessions. The headfirst electrostatic approach works by changing the charge distribution of the material to which it is clinging, Graule says. This works best with a smooth texture, so the drone can adhere better to something like a window than to a rough or porous surface. The MAV’s electroadhesive connection is not particularly strong, however, which means the drones need to weigh in at roughly 84 milligrams—less than a bee. In order to relaunch the drone cuts power to the circular copper electrodes in its disk and restarts its wings."

That would be great to find a high point, attach yourself, and look around. Then head over somewhere else if necessary for a better view.  Brilliant!