Thanks to an RPG.net photoshop thread (make covers of games that should not be!) I discovered something new. Apparently there is a series of capsule toys called Mecha Musume that has figurines of girls cosplaying as WWII mecha. Better still, many of them cosplaying as catgirls cosplaying as WWII mecha.

Here's the Konami Mecha Musume page. Just one question, what do I have to do to get a British Valentine tank catgirl?

What, like you didn't already know I was weird. :}