Damian made this wall bushing to pass cables securely through a wall. He made a customize one to fit both cables in a matter of minutes with InstaMorph.
“Couldn’t find plastic wall pass through things at Lowe’s for two cables for my project a couple weeks ago. After seeing them and learning what they were actually called, though (bushings), I found some dual cable ones online. I didn’t want to wait longer so I made it myself. Made a tube the size of the hole and a disc with a hole in it, fused them together, made a ring around the tube and hammered it in. It got stuck in the hole just like the plastic things you buy that are designed that way. Unfortunately I didn’t take a picture before putting it in.. I need to next time. This stuff great!”