I have been looking for 28mm shipping containers for various scenarios and general background terrain for some time and there isn't much to choose from. Basically you can make card stock versions or Rackham makes a few for their AT-43 range. Recently I realized O scale model trains are around 1:48 scale and the intermodal shipping containers looked like they would fit the bill. I purchased 14 containers from Ebay and just opened them tonight. I believe they will work just fine.