That’s a great idea with the pipe rounds and one I’ll likely copy.
I’ve musically made do with the pockets of a nylon framing belt full of hard tools (framing, anything indelicate) on one side with my framing hammer and big bar wrapped up in a belted loop on top. On the other side is a soft old suede mini apron that ready to just throw on and be added to as required, along with all my squares and delicate stuff. It looks more organized than it is, as all my fine finish stuff is kept in foam in Systainers. (Chisels, planers, anything expensive and/or delicate.
I will try the pipes though, perhaps with a foam bottom to avoid rattling. (The thing I like most about using belt pockets is the lack of rattling.)