After watching a few @Pawpawsailor videos, I really wanted to know what the bench he was sitting on was called. A few google searches later, I find it, a shaving horse. In ye olden times, these would be made from logs to shave poles, or basically anything.
I used simple dimensional lumber, 2x6's for the frame, 2x4 for the swing arm. I milled down the Center plank on a table saw to get the right width (4.5"). I made it so it folded flat, IF I needed to transport it.
Works very well and I even made the seat, using the horse! It's a board of local poplar from the 80's. It was a little cupped which made a very comfortable seat!
I will be making many slings with this and I am pretty happy for 2 hours work. A lot of it was measure, mark, eyeball, fit and then cut. I have long arms, long torso and short legs, a weird combo for this type of tool but I nailed the dimensions for my uses.
Anyways, I took a celebration photo of myself since I look like I am on a carnival ride when I am on it