I came across this tutorial the other day on how to make a berry picker out of a PVC pipe. Whether it works well or not, I'm not sure, but I think I'll give it a shot this summer. It does look pretty neat on how it operates with the berries falling through the inside of the pipe and collected in the attached bag at the bottom. It could save your hands from the black berry thorns, and I'm not having to stick my hands into a place where a lot of snakes like to crawl into.
http://www.instructables.com/id/BERRY-PICKER/#step1
http://www.instructables.com/id/BERRY-PICKER/#step1