Wow, now that is a great list of ideas! Thank you so much for your feedback! I will definitely look into it and probably throw an update very soon.
Just some more ideas while I'm thinking
-tractor, and harvester
-farmhouse
-silo
-bank
-Moneytruck
-swat vehicle
-aircraft hanger based on warehouse
-prop plane, and small private plane
-runway tiles
-city bus stop
-ruined/dead variant of flowers
Some ideas might be a bit out of the scope of what you're going for, but it can't hurt to suggest!