This gives you an idea how to "MacGyver" junk into a "light box". In the bottom of the cooler I either place the ring around the subject (the penny) and shoot straight down for dorsal shots, or I use a half of a vitamin bottle to shoot lateral shots (the matchbox). The camera would have the coffee filter diffuser or the condiment cup over the lens but I left that off in this photo so things were more understandable.