Very Customizable Fidget Spinner

Very Customizable Fidget Spinner
Customize:

type of weights: 5/16", 3/8", 1/2" nut, M8, M10, M12 nut, 608 bearing, 5/16", 3/8", 1/2", 5/8" loose ball bearing, US penny, nickel, dime or quarter, M4 square nut
number of rays
number of weights per ray
edge roundness (radius)
tapering of rays
glue grooves

Update 2017-09-29
Allow for ISO 4032 M10 (16mm) and M12 (18mm) hex nuts along with the old DIN 934 M10 (17mm) and M12 (19mm). Thanks to jnse for reporting the problem.
Update 2017-08-17
Added "minimal" ray style that just consists of the weight frame. If using an extended ray with one weight per ray, a thin bar will connect the weight to the center.
Update 2017-05-03
added M4 square nuts as suggested by nattrassj12
Update 2017-04-25

added the option to use 5/16" (8mm) loose ball bearings
added the option for horizontal glue grooves for center 608 bearing and ray weights

Update 2017-04-11
added the option to use loose ball bearings: 3/8", 1/2", and 5/8" (tested wi