Maybe a rotated Pisces symbol (♓︎) from Marvosym? It has variable edge thickness. You can make it a bit more narrow to resemble the Yaz character.
Or otherwise you can try to find a nice Tifinagh font and use that with XeLaTeX or LuaLaTeX. I found a calligraphic font called caligraphie.ttf
on http://www.ircam.ma (The Royal Moroccan Institute for Amazigh Culture).
MWE:
\documentclass{article}
\usepackage{graphicx}
\usepackage{marvosym}
\usepackage{fontspec}
\newfontfamily{\tifinagh}{caligraphie.ttf}
\begin{document}
% all engines
Marvosym \verb+\Pisces+ rotated: \rotatebox{90}{\Pisces}
Narrow version: \scalebox{0.7}[1]{\rotatebox{90}{\Pisces}}
% xelatex/lualatex only
Tifinagh font: {\scriptsize\tifinagh ⵣ}
\end{document}
Result:
