Customizable Xmas Wreath

This Christmas wreath is made out of pieces that are intended to look like (stylized) spruce twigs. The "twigs" can be either laser cut or 3D-printed.

Parameters that can be customized:
* _wreath radius_ determines the size of the wreath
* _number of twigs_, there must be an even number of pieces
* _thickness_ of the twigs. How thick to make 3D-printed twigs. When laser cutting: the thickness of the material.
* _show assembled_ shows the entire wreath rather than one twig. You gotta have