Sakura Spinner (Cherry Blossom-Shaped Fidget Spinner)

This is my first spinner design, so I'm marking it as a work in progress, although I've made a couple and they seem to work fine. I wanted to make a design that didn't have exposed bearings or other hardware, so I went with a design that has 5/16" nuts sandwiched between two halves. This makes it thicker than most spinners, but it will spin really well -- especially with ceramic bearings. (Obviously, you'll need to supply one of the usual skateboard bearings that are used in this kind of spinner