The Quick Release Camera Plate from Photek is a quick-release camera mounting plate with a slip-proof pad on top and a 1/4 camera mounting screw.
P200 Quick Release Plate - UTEBIT Aluminum Alloy Camera Tripod
This MH804 3-Way, Pan-and-Tilt Head Kit from B&H includes one MH804 3-Way, Pan-and-Tilt Head with an integrated RC2 quick release cam lock and two
Manfrotto MH804 3-Way, Pan-and-Tilt Head Kit with 200LT-PL Quick Release Plates
Manfrotto XPRO 3-Way, Geared Pan-and-Tilt Head Kit with 200PL-14
Used Manfrotto Befree Advanced Travel Aluminum MKBFRLA4BK-BHUS
TRI-X-2500 - Horizontal Tripod Pole Extender For Top Down Shooting
Beachtek V-CLIK Quick Release Plate for Camera Accessories
Universal / Generic quick release camera plates by Acratech
Used Manfrotto MK055XPRO3-BHQ2 Aluminum Tripod MK055XPRO3-BHQ2
Manfrotto XPRO 3-Way, Pan-and-Tilt Head with 200PL-14 MHXPRO-3W