If there's anything technology has been driving towards, it's the innovation that allows corpses to wink. Finally! But don't worry, there's a use for this for people other than flirty necrophiliacs.
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You see, these electroactive polymer artificial muscles use soft acrylic or silicon layered with carbon grease to contract like muscle tissue when it gets a little jolt. It's being tested on cadavers, but the hope is that it'll eventually allow paralyzed folks to blink as well. They're hoping to get it to patients within five years. [UC Davis via Archives of Facial Plastic Surgery via Engadget]