Me and the bro in the sheep shed the other day , wanted to mark on of the ewes to keep an eye on her. New bunch of ewes bought and totally mad, literally would climb the walls, seeing as they are bout to drop lambs did'nt want to get in with them. I thought if there some kind of pole you can put an aerasol marker on the end and a trigger on the other. The bro came up with the idea of a paint ball gun so could be used from the quad, maybe a blow gun with a paint ball. SO anybody any experience ???