This is artillery and a fleet to replace the cardboard pieces in Diplomacy. The top of the zeppelin file is the bottom of the zeppelin piece.

I made this in Blender and Sketchup.

Artillery Print Instructions:

• No supports or rafts at 0.05-0.07 layer height. Supports may be needed at thicker layer heights.
• The filament is PLA, with a nozzle temperature of 205 degrees Celsius.
• 5% infill.

Fleet Print Instructions:

• No supports or rafts.
• The filament is PLA, with a nozzle temperature of 205 degrees Celsius.
• 5% infill

Zeppelin Print Instructions:

• Supports: Yes
• The filament is PLA, with a nozzle temperature of 205 degrees Celsius.
• 5% infill

Aircraft rules:

The aircraft can be on land or on coastal seas. They may not take supply centers, but they may support any other unit.