does that require extra hardware? Securing the feet seems to be the solution. what sort of tripod is that? It looks interesting - one of those with a stem that can be turned horizontally?

Here's the tripod quiver I just made.

1) Aluminium T-frame (made of that square C shaped stuff).
2) Piece of camera strap at top to protect tripod.
3) Lense pouch to hold feet, bolted to quiver via its belt loop (i.e. no bolt heads inside pouch).
4) Piece of leather belt between rack and vertical strut to stop rattling.
5) Velcro strap to secure quiver to rack posts.
6) Undo bungee and lift tripod out.

I think it'll work well- certainly worth an hour or two, especially if your tripod is big and valuable. Thanks for posing the Q.