#StackBounty: #pgfornament Drawing in the style of pgfornament

Bounty: 100

I am regularly using the ornaments from the pgfornament package and especially those representing animals.

However, sometimes I don’t find what I need (e.g. a bear or a dolphin). So I was wondering if there was a way to produce similar-looking drawings in LaTeX?

My thought was to use Metafont to have a variable line thickness along the drawing and a reference image in order to extract the coordinates of key points but I am not sure on how to do that.

Get this bounty!!!