Today's prompt was 'horseshoe crab'. The upside down one is waving it's tail and legs madly, poor thing...

I have an idea about how to draw some irregular polygons with a little math. I will make a rough shape inside my sinusoidal pointy oval world map, then start pulling on the points which make up the perimeter. The random point will interact with the closest vertiex  and cause that vertex to move halfway to the random point. If the random point is inside, the perimeter will move in a little, or if outside, move a bit outside.