And check this out, too...(quick)
The Serenity blueprints.
Still a bit pricey, but I've got mine. They're almost gone.
Reminds me fondly of my purchase of those original Star Trek Enterprise blueprints many years ago. They go for next to nothing on E-Bay now, which is a good thing, I suppose, since I ruined the collectibility of mine by carefully coloring in different functions with highlighters.