I had some issues with the keyboard switches fitting while building this controller. I've made some minor changes to accommodate the low profile brown and blue switches I found on amazon. Mostly resizing the button stoppers for better clearance and adding a keycap interface to the buttons for more smooth operation.
I also wanted to change up the head to have a sheep since it's a clone of a Guitar Hero controller as well as being used for Clone Hero.
The author hasn't provided the model origin yet.