An ideal candidate for a future heavy landship.

This plastic toy tank David picked up at a second-hand shop is from the GI Joe action figure line. It is purple with an image of a cobra on the front, so presumably it belongs to Pvt. Joe's enemies. Originally it carried a missile launcher.

The top view shows the interior detail. A large stack projecting through a roof grating made from needlepoint canvas, would turn it into a very convincing boiler room. A foamcore floor would convert the front opening to a capacious machine-gun station. A few gunports in the front of the shield, a bit of paint, and a big Imperial German War Ensign fluttering from a staff would complete the project. It's a landship builder's dream.