I see in the instructional videos of different photogs, an assistant holding a pole with a flash mounted on the top. It seems very handy, but I can't seem to find them anywhere. Is this a product that can be bought, or is it a DIY project? I tried to find a link to an example, but it is basically just a 4-6 ft pole with a speedlight attached to the end. A monopod would work, if the stud was at the other end. Any thoughts?