Hello!
I've made some patches by myself-it's really lot of work.
I screenprinted my patches -but embroided would look better
Then cut a shape with the scisors

Iron the form-flex on,so it's not so thin,
iron the form flex under the shirt-so it doesn't wrinkles while sewing,
put some adhesive spray on the patch-so it stays in one place on the shirt,
and sew it on with thick zig-zag stitch with regular sewing machine.
Looks good-but too much work...
And it took me some time to find form-flex-I even posted a question about it:
Pellon that looks like a regular fabric
I still look for better way to make patches-or maybe I will go without them
