Be historically correct and don't destroy war items!
All products are for those who are interested in war history and focus on reenactment details and so they want to be historically correct and they also don't want to destroy the original war items.
I work as a photographer at work, taking advantage of this experience with graphics software in my hobby - reenactment, which I have been dealing with since 2013 in our reenacting group.
The main reason for my work is that you are not must afraid to use personal products or food packaging during reconstructions or filming and not to destroy original war items that need to be kept for as long as possible, as some war items can no longer be found at all. I also gradually try to write information about the use in a BLOG, where I write various recepices or information about products.