Fore the re-en-airsoft types:
If you want to fill your bread bad with something a bit more period, Ostfront are making repro Scho-Ka-Kola tins that are a sight better than the modern ones with stickers on the tins. They've picked a rather rare version to repro but it looks the biz.

For the uninitiated, Scho Ka Kola is a caffeine impregnated chocolate (like Red Bull for Landsers) and is still sold today. During the war it was available as private purchase, distributed in Wehrmacht rations and included in Red Cross food packages.
International shipping for just one makes it way too expensive but if 10 peeps wanted them the total cost plus all shipping, duty. VAT and onward posting would work out at about ΓΒ£19 each.
PM me if you're interested in getting one.
blown out this month now
if you get 10 people by the 4th November then I'm in for one 
Looks good to me, i'd be keen.