Riddle: How does your reflection flip when you bend a spoon inward?

How about making a device that has an array of pins that can slide in and out and at the end of each pin is a tiny mirror.  Each pin must be able to move in and out and the entire array is controlled by a microprocessor,  like an Arduino.  How to move the pins though?  Hydraulics, linear actuators, piezoelectric actuators perhaps.  To start just provide some friction in the array and control the pins by pushing them in on the opposite side with objects matching the desired outcome.  Search pin art wiki for an example.  Edit: I was thinking this might not work as I expected since each tiny mirror would not be concave or convex.  Might still be an interesting experiment though.