For a better experience, it might be interesting to bring custom overlays on ammunition boxes.
I know that the implementation would be difficult.
Perhaps that could be realized via an additional input line in the editor?

In reality, ammunition boxes are also provided with an exact description of the contents.
Never again will you have to open several boxes to find what you are looking for.

Here is a webdemo to create images from text
http://www.dingbatty.com/ {F20986}