Teen Vogue Beauty Director Eva Chen has a sneak-peek at Lancome’s new vibrating mascara Oscillation, whose debut you’d better believe the beauty world is watching with a close eye.  (I’m sure it’ll clean up at next year’s CEW awards, and you can probably expect all manner of randomly battery-powered beauty loot in the near future.  Electronic foundation brushes!  Line-dotting khol needles!)  Curious to try it?  Eva reports that Oscillation will be available tomorrow–for one day, only!–at select retailers.  Check out locations here.