I found a company online that made the screen for me. All I had to do was supply the art. Not a problem there. I used HelloMelloCo on etsy. There are many companies that will make custom screen that are ready to print.
I anxiously loaded the screen with black ink and made my first pull.
I didn't have a squeegee... used what I had... a stiff piece of plastic. I bet you could use a old credit card, maybe even a piece of cardboard.
I printed a few more. Success!!