Reverse Hook Boomerang

I am not sure I really like this shape, it just came up when doodling around with splines in Onshape. The Onshape part can be found [here](https://cad.onshape.com/documents/f4fc462cbce27d8bfdbc5d95/w/089a8c7db69016406335e7b5/e/15a04f614f97c956d1b41566).

It does fly, though, so I decided to publish it. Throw not too high and with a bit of layover.