WRS 1-3/8" Heavy Duty Vent Lock - Dark Bronze or White Bronze – Window Hardware Direct
Amazon.com: Universal Air Vent Clip for Car Mount, Upgraded Car Air Vent Clip Twist-Lock Anti-Shake Triangle Support for Cell Phone Holder Wireless Car Charger Mount [with Joint Ball Diameter 0.67in/17mm] : Cell
Tjernlund, Hidden In Plain Sight Air Vent Wall Safe, Material Steel, Compartments (qty.) 1, Lock Type None, Model# Wall Safe | Northern Tool
Car / Van Boot Tailgate Vent Lock
Vent Damper Remote Lock - Castle Winch, LLC
VEVOR BBQ Access Door with Vents 12x12in Single Access Door, 304 Stainless Steel Outdoor Cooking Doors,Flush Mount Vented Utility Door with Lock, Beveled Frame Access for BBQ Island Grill Kitchen - Walmart.com
ARC Enclosure Lid Lock/Vent Clips by stevensaero | Download free STL model | Printables.com
Hidden Compartment for Gun Storage with RFID lock in a fake Wall Vent