Yup, that's almost exactly what we did to make diamond airfoils.

One thing..........
Don't make the LE a sharp point like your drawing. It's too hard to maintain.

We used to make that LE with a piece of square stock and found out that rounding the LE lots easier to maintain. And the wing flew better.

We used them in about the best "laboratory" modelers ever had for comparison study. Control Line flying.

Using a diamond airfoil in your display will give the display some interest to the public. Diamond airfoils LOOK different. And will catch the public's attention.