Dread Central has these possible DVD covers that were on display at Comic-Con for the upcoming DVD releases of the 'Grindhouse' flicks 'Planet Terror' and 'Death Proof'. Looks like there will be a regular DVD cover and a metal casing. Looks like both releases are the same except for the metal casing. Which is ... you know ... metal.
Here is a better quality one of the 'Death Proof' cover.