I made these camera “lens” myself with Kodak disposable camera lens. It’s designed to adapt with leica M-mount camera and replicate the classic CCD photography experience. This lens has a ~30mm equivalent focal length and it’s focus free, which makes it perfect for street and every-day photography. It’s a perfect gift for your photographer friend too!
This specific package DOES come with a dust bag and a lens back.
I’ve made adaptable lens on other cameras too :) Feel free to check it out on my page.
Please DM if you have further questions