Amazon.com: Amer Mounts AMRDCP100KIT Universal Adjustable 2 x 2 feet Drop Ceiling Projector Mount, Suspended Drop-in Ceiling Projection Mounting Kit, White : Electronics
Amazon.com: Promounts Extendable Universal Ceiling Drop Down Projector Mount Bracket for Flat or Sloped Ceiling, Compatible with LCD/DLP Projector, Swivel 360° and Height Adjustable up to 44.5" (UPR-PRO200) : Electronics
5 ways to hide a projector screen in the ceiling
Spectrum Series|100 120&180 Inch Dimensions Projector Screen
Motorized Tab-tension Drop Down Disappearing In-ceiling Remote Control Electric Projection Screen With Pvc Cinewhite Home Cinema - Projection Screens - AliExpress
Chief SMART-LIFT Automated Projector Lift For projectors weighing up to 35 lbs. at Crutchfield
Hidden Projector Motorised Ceiling Mount - Projector Lift - Ultralift Australia
Lifts and Mounts :: Draper, Inc.
Best Projector Mounts 2020: How to Hang, Install Projector on Ceiling – Rolling Stone
Monoprice Commercial Series Hidden Motorized Recessed Ceiling Projector Lift Mount (Max 44 lbs.) - Monoprice.com
ALZO Suspended Drop Ceiling Video Pico Mini Projector Mount - ALZO Digital
Can I install an in-ceiling screen perpendicular to my ceiling joists? – Projection Screen Resource