Pawel
have to look up perion cigarette packs and maybe work some more on the bug juice bottle
Like you said, almost a kit unto itself. Nad well, done, too.
"Bug Juice" Bottles had a couple of forms:
Also
And, with white printed text
Your pick, all are "period correct."
For "smokes" plenty to choose from:
The "skinny" ones were in ration packs.
More:
Lucky Stripe, Marlboro, are the iconinc ones, visually, but Pall Mall and Park Lane and Winston were seen.
The helmet band, did not become elastic fabric until about 1970, before that, the "grunt solution" was to cut a bicycle tire inner tube. Which look much the same today as back then--a gray rubber that was darker on one side and lighter on the other.
Sometimes more than one was used, due to occasional poor-quality local tubes.
Think Gunship Gray and lightened Panzer Gray.
Cards were a mix of "face out" and "face in"--your choice may come down to whether you want to render the classic "Bicycle" deck pattern at 1/16 scale or not.
Image available at: https://wallpapersafari.com/w/oCFi3j
Hope that helps.