Amazon.com: 10-Pack - 6" Plastic Propeller - Made for Rubber Band Powered STEM Projects Like Airplanes and Helicopters - Fits on a Craft Stick : Toys & Games
Amazon.com: E-flite 3 Blade Propeller 11 x 7.5 EFL5962 Replacement Airplane Parts : Toys & Games
Amazon.com: Plastic Propeller for STEM Projects, 6 Inches, Pack of 30 : Toys & Games