Since you guys want to go the scenic accessory route - why not try some stuff that we search and search for but aren't easy to locate ...
1. Street accessories: frames would include bicycle (how hard are they to find?!), telegraph pole or two, street signs, maybe a handcart, possibly some tools.
2. Farm accessories: to include ladders, farm tools such as rakes, scythes you name it, baskets full of produce, maybe some barrels or casks, small wagon or wheelbarrow.
Some of these things are available in resin and some in mdf (have you assembled an mdf wheelbarrow? they are lame) but sets that combine them at reasonable price are not. They would sell to warmers, diorama builders, and people just wanting to super detail their armour also. A tank might well be carrying a liberated bicycle and some farm produce in addition to its military supplies ...
just a thought anyway
EC