Amazon.com: uxcell RC Airplane Spinners Propeller Adapter Saver for Shaft Brushless Motor (4mm Aperture and 6mm Output Axle) : Toys & Games
Amazon.com: XOAR RC Carbon Fiber Spinner for 2-Blade Propellers Electric RC Fixed-Wing Model Airplanes (70mm, Tractor) : Toys & Games
Amazon.com: RC Spinner 5inch/3.5inch/3inch/2.75inch Carbon Fiber Spinner 2 Blade with Anodized Aluminium Back Plate for Gas RC Plane (White,2.75inch) : Toys & Games
Amazon.com: Dancing Wings Hobby RC Airplane Parts Folding Propeller E7 10X6 Spinner Size D33 * H30mm and Motor Shaft Diameter φ3.17 with CNC Aluminum Alloy Spinner (LS-ZDJ-02-001) : Toys & Games