I just wanted to play Duck Hunt with my kids': the man on a mission to bring back the light gun | Games | The Guardian
GitHub - hex-plex/Light-Gun: This is OpenCV based application to figure out the relative position of the pointer using 3d reconstruction of the system of points.
Sinden Lightgun - 2 Pack – Sinden Shop
Accurate Wiimote Light Gun for Raspberry PI : 9 Steps (with Pictures) - Instructables
Hands-on with Hyperkin's NES light gun for LCDs and Raspberry Pi DIY SNES kit - Neowin