The Toy Rocket Construction Kit lets you make toy rockets in any configuration either using the STL files or use the openSCAD script to make your own variations or new modules.

Basic rocket modules include body, wings (with nice rounded edges), screws, fuel tanks, portholes, boosters and of course the nose cone. Just print off the bits you need, push them together and blast off!

Print the bits you need and then push them together anyway you want.

The openSCAD script is included and is also on github so you can make rockets of any size - it's all parametric including the number of wings, screws etc.

https://gist.github.com/4607642

Play with the wings module to create some Thunderbird like fins. Please feel free to make the openSCAD file even better... I'd love to see people build on this to make a great fun system. I think the push connector could still do with work, maybe needs a twisting / locking mechanism?