Starting at 9 O'clock and moving clockwise:
Those big rectangles are forest bases. They are 3mm plywood with holes drilled. This lets you relocate the trees when you need to place units in the woods. That way you don't have a "woods" area with two measly trees in it when occupied.
That group of small rectangles comprises a mortar platoon and 3 HMG platoons for my Spring Offensive (Flames of War, Russian front '43).
On the popsicle sticks a battery of American 57mm AT guns, some cows (for scenery in Russia), and some sample BTR60a's (trying out colors for Soviet armor).
Then come five bases of Russian Grenadiers for my Leipzig in Pocket Scale project.
At high Noon a walled farm, two stone bridges, and several simple buildings that will be part of the factory complex for my Flames of War game.
Finally at 3:00 another group of buildings to be part of that same factory complex.
Not pictures: on the patio drying, Soviet "Crash Boom" artillery - two full batteries worth.
So, what have you got in the queue?
since there just isn't always solid evidence of patterns. In this case, if you Google "Littorio Battleship" for images you'll find examples carrying both at the same time. Most of these are modelling recreations but I often try to model to "general perception". I followed a popular color profile as my example.