3 phase no feedback Controller - 12V 30A - [1]
Fidget Spinner Bearings (22mm total diameter, 8mm bore and 7mm width)
8 Disc magnets per rotor (8 mm thickness, 20mm diameter) [2]
Copper wire (0,2 mm diameter max. definitely not more because you will get eddy current issues) [3]
Bit of brass tubing (4 mm outer diameter) to connect the coil endings in. [4]
Solder
Glue (the type that sticks)
8 mm metal rod for an axle (offcuts from universal axis are great for this)
3d printing filament
a little bit of epoxy to glue the magnets in place [5]

Links

Dirk 3D Printed Electric Motor BOM