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If Darth Vader could find a tux to fit over his massive breathing apparatus, this would clearly be his first choice of neckwear.
Set humor to ludicrous speed!
I'm not sure I like the idea of Vader's face that close to my head but if it will make y hair shiny and bouncy I'm willing to try most anything.
Let the Force decide your outfit in the morning.
Grandma will be so pleased to see you embracing the holiday spirit.