"A drone" is a very vaugue description and as is "to pick up things." What kind of drone? Flying, ground, or water. What kinds of things, toy, garbage, nersscary supplies for the rebel base? Will the drone run on a ai or will it be remote control. I am sure you have the ideas in yor head what you want so share so we can see it. I see great possabilities such as a remote control boat to clean floating garbage out of a lake or something like Amazon suggested of a autonamus drone to deliver a package to someone even a car or tank drone to pick up dog poop in the yard.