I have a Darth Vader mask in adult size to offer. It has a battery operated sound assist that makes your voice sound a bit like Darth Vader, and also it plays a few phrases. I've left some working batteries in.
Andrea in Portishead
Adult Darth Vader mask with sound enhancement, Portishead (Weston in Gordano BS20)
This offer has been gifted to someone and is no longer available.