The DZ combo can be drawn by using the Ds horizontal bar as the first dash of the "upper Z double dash" and continuing to draw the full Z, or by turning the Z on a slight angle and connecting it to the underside of the D.
I actually do not require strict attribution as the licence indicates. I realize the "puzzle" value would be lost I will galdly provide express exemptions for your projects Please contact me at vasten@dscript.org