I have some original (early 90s era) Bent metal baseless bindings. I was told these have become somewhat collectible. The have the low boy high backs with the pink barbie print. They are EXTREMELY rare and hard to find. They put your feet on the board directly. No metal between you and the board. They also weigh about 1/2 of normal bindings. VERY light. Make an offer.
If you give me 20 bucks I'll take them off your hand you pay shipping too.
These are not high tech by any means. They would be great for someone wanting to re-create the look/feel of an early 90s board. I had an early Lib Litigator and then the MC. These were very popular because of the light weight and "skate" feel that early snowboarders liked. You might as well not have any highbacks at all.