How about some pioneer equipment in use or ordnance related.
So odd you said that, I was looking around in the recesses of my book shelf and happened upon my Pioniere der Waffen SS Im Bild book, which has many images that have never been published, as well as photos of them using their equipment.
Your uniform & equipment collection in a display !
I can do that, but it will be a couple of days before I can post the pictures & to do a writeup of each and every item. I itemized my WWII German AFV model kits and that was an endeavor in and of itself.