Its big advantage, which is lacking from a lot of other programs, is that it's easy to work with banners and other projects that span several pages. That was very important for the boat, and will be vital for the spaceship thing.
Can anyone suggest something a little more reliable that has this capability, is fairly easy to use (e.g. not a fully featured CAD program) and hopefully isn't ridiculously expensive. So far I've tried Serif Draw and Open Office Draw, but neither seems to know about continuous multiple page documents. I suppose I could try setting up a custom page size or something, but it'd be easier to start out with a program that already has the capability built in.
How about Corel? It's ridiculously pricy but I may qualify for an educational deal or something. Anyone know?