This is a quick and easy way to make a rack to hold small spools of wire, cable, tape, etc using a few screws, a section of 1/2 CPVC pipe (16 mm OD) and a wall.

Could also be a towel rack, TP holder, etc.

SeeMeCNC

Rostock MAX

No

Doesn't Matter

Print using a strong plastic material as this will be supporting weight likely above your work space.