What is it?
I made some fake "box photos" for my SMS software. Other people asked me how I did it. Mere years later, I respond! You'll need to download POV-Ray to use this, and you'll also need the ability to create a fake box inlay in an image editor. Alternatively, you could render scans but you'll still need an image editor to cut out the needed parts.
POV-Ray SMS box (1KB)