It's a great little starting point for all kinds of things, yeah. My brother did an air-launched one under an HE-177 years ago (that was the Heller Natter, but you can do that with this one, too). Maybe a German Ohka, or even a space ship comes to mind. Maybe a German X-1, a supersonic research plane with some aerodynamic refinements!
I did just want to post the OOB review. I am sorry I got it in the wrong spot. If you want to move it, please feel free!