Samurai movies on DVD have cool cases. Take a look at a few...
I am a big fan of the simplicity of these designs. Clearly, the first two are a bit more minimalistic than the third, but even the third is rather restrained, yet still bold.
Anyway, in the past I mentioned I am going to write a Jedi epic called 'Madness of the Force.' That's still going to happen, and in advance I have decided to go ahead and create the cover in the style of Samurai DVDs. Granted, Madness of the Force is a written story, not a DVD, but still.