Polygon vertex stencil
To draw the polygons draw the vertices with the stencil. Afterwards, the vertices/dots need to be connected.
This takes too much effort imo, but I found no other way yet to craft a stencil by hand that stays exact enough to use properly (You can see I attempted to cut out the polygons in the upper left corner. These turned out far too errorous and cannot be used if an exact outcome is desired.)
But at least, by using this tool I save a bit of time and effort with drawing many polygons compared to using ruler and/or compass and/or geometry triangle drawing tool.















