About this 3D model
There isn't too much to explain here. Wear this pin for whatever reason. Personally, I think it just looks cool and it's not a difficult print. After you print it, use some glue to adhere a pin back into the depression on the back of the model. E6000 works well for this but hot glue is also sufficient. It's also good to score both the model and the pin before you glue them together for added adhesion.