Adafruit DC Toy/Hobby Motor - 130 Size [ADA711]

Gracilaria 8PCS RC Airplane Plastic Propellers 75mm Model Plane Positive Reverse Propellers for RC Plane Helicopter DIY Model Aircraft Building Project (1x75mm Mix Color)

Losi Complete Differential Set FR/RR V100 LOS232065 Gears & Differentials

EKIND 8 Pcs Propeller 55mm Props 2-Blade Propeller 1mm Shaft for Fan Leaves Ship Model RC Aircraft Boat DIY Airplane Science and Education Toys (4 Color)

EKIND 10pcs Round Axles Shaft Rod/Straight Metal Round Shaft Rod Bars for DIY Model Toy, RC Car, RC Helicopter Airplane (2mm x 100mm)

JUZITAO 8pcs Mini Micro N20 Gear Motor DC 3V-6V Slow Speed Full Metal Gearbox Micro Motor for RC Car, Robot Model, DIY Engine Toys

uxcell RC Propellers 5040 5x4 Inch 3-Vane Multi-Rotor for Aircraft Toy, Nylon Black 2 Pairs

Tamiya 70168 Double Gearbox

Kyosho #MZW423 Front Spring Set (soft / Short / MR-03) for Kyosho Mini-Z MR-03

Sparkleiot Building Blocks 6 Speed Gearbox with V16 Engine Model for MOC Power Functions