Its probably too short for what you are joking about. But most of the length is an aluminum tube that will have either a rod or cable running between the handle and business end. Making it longer should be easy enough with some Home Depot hardware.
The grabbing end is almost certainly plastic. That wouldn't hold up. If you wanted to make your own you could use a bicycle caliper as the grabbing end. A lot depends on how much space is available around the cable. God! I'm such a geek!