It's fun to make letters out of simple tools and materials. Here, with Notch, you start with a 1 1/2 " square of paper,* and then use a craft punch to remove a square from its interior and a triangle or square from its edge.
*If you have a long-reach punch you can start with a larger square.
Above: a possible Z.
You can try some variations on my G and Q, to start with, to help readability. And good luck with Z: I usually turn N on its side, but also you could flip the S over.