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.
Does your doorbell play the Imperial March? Do your guests have to take off their shoes and don R2D2 slippers in your home? How do you not have this lamp already?
Let the Force decide your outfit in the morning.
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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.
Grandma will be so pleased to see you embracing the holiday spirit.