Answered: 3D Printed Parts Legal?

I had this idea for a part to protect wire connections and I want to know if it is legal for use in a vex competition, because it has no mechanical or electrical use. Its only purpose is to protect the connection between wires. Atached is a prototype of the part I 3D printed in class.
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This is not legal for VRC usage, as it is not a VEX part, nor is it on the list of additional allowed items specified in <R7>.