Alternative Quarter Rest

[Dan Eble]

If I wanted a quarter rests that looks like a reversed Z, would it be 
acceptable to add a glyph to the Feta font, or would I need to create my own 
personal font for that?

I wouldn't need it to look exactly like the attached picture, just not as 
conspicuously different as the default quarter rest is.  I’d want it to look 
like it belongs with all the other Feta rests.

Thanks,
— 
Dan