That is delightfully bizarre, Allister.
Some time ago, a friend of mine gave me a weird bicycle saddle that he found in his 150-year-old barn. It was a like a mini football goal post with a canvas belt hung between the posts. The rider apparently sat in this canvas swing and bicycled along. It must have been a thrill to ride to say the very least.
Hmmm… wonder why you don’t see many of them anymore?
If I have extra ambition some day, I will dig it out, put it on a bike, and post a pic