Wire spool, modular, print as many as you need, with room for feet on end or in between spools.
Considering adding a freehub, but so far unwinding the wire is fine as I usually use short lengths. Also working on a vertical stand and a on-wall swingout stand. Maybe also it would be useful with a shorter left-side (2) spool for small lengths of wire.
The author hasn't provided the model origin yet.