This is what the finished product looks like. You can even scan the image! It goes to my website, www.awkwardengineer.com
Step 2: Making a CAD Model of the Stencil
I traced the QR Code into a CAD program. It took me about one lunch break. I also connected some of the corner pieces so they wouldn't be "knife edges". The codes are pretty robust and forgiving to little doodads like that.