$40 · Benq CM00G3 Universal Projector Ceiling Mount
I have a brand new in box Benq CM00G3 Universal Projector Ceiling Mount. Never ended buying the projector.
https://www.vlcanada.com/products/benq-cm00g3-ceiling-black-stainless-steel-project-mount-5j-jam10-001?variant=8432557129772