Yeah me too!
I am going to start a call maing business soon. I have a scratch box design that will work nicely, not super loud, but good yelps and super clucks and purrs. I will have a slate striker also.
another design I am working on is for a rectangular slate call. With a wood sound board. It is easier to hold than a round pot call.
Once i get this slate worked out I will start on a glass of the same design.
Look for'em soon enuff!