Dave Prowse will sign anything. That's all he does. I have signed Dave Prowse stuff coming out of my butt (carded action figures, posters, trading cards, photos), and I'm sure he'd actually sign my butt if I asked. Nice guy though. By the way, sorry dude, but you have signed cellophane. If you had a toy and you got the box signed, for example, you'd have signed merchandise, but you have signed plastic.