Torges Seat Materials

[AlabamaMountainMan]

Anyone willing to share some materials they have used for making a torges tree seat? I know the default is usually a 1/2 inch piece of treated plywood or something similar, but I have seen some folks online use plastics & aluminum. I would like to tinker around and make a really lightweight option. Considered trying a large plastic type cutting board and drilling some holes in it to lighten it as well.

Interested in recommendations for the rope, the seat itself, and anything used to add more utility. Saw one guy who added a nalgene holding strap and a small pack to the bottom.