I use category Fuselage because I was fitting and placing short plastic tubes to act as conduit for future electrical wires. I realized that a fair number of wires were going to run in the center tunnel, and I wanted them in conduit, not just wire bundles. So I went to Ace Hardware and Aviation Supply and got some clear, somewhat soft tube and some stiffer orange tube, both 5/8" ID so they would fit over plastic snap-in bushings of that size. Measured, cut, and placed a number of these.
