This is a small piece to attach a transparent acetate sheet (A4) on a common baseball cap.

In the middle of Coronavirus (Covid19) pandemia I thought about people working in supermarkets, pet shops, gas stations... and the risk of customer sneezing and coughing at their faces.

Obviously it is not (by far) as safe as a real medical equipment, but it is cheap and easy to build.

Feel free to change de OpenScad file and improve the design. Do not forget to share your version!

UPDATE: Following some advice from my friend of the Sevilla Maker Society I added a locking pin to the main piece. Just make a hole to the acetate sheet using a standard puncher a secure it with the pin.