These seem like a good idea for a photographer who carries a camera and lens on a tripod head while moving from place to place.
https://www.kirkphoto.com/asc-3-snap-collar.html
Unfortunately, they were only available to fit the BH-1 and BH-2 tripod heads. It seems, however, that a handy person could fabricate something like this for just about any head. I might just try to fabricate one for my Giottos and my Kaiser tripod heads. I think that I could cut some rubber matting in several layers and cement the pieces together.
Might be worth a try, what do you think?