What'd it be to interact with people using 'social media features' in real life? There's a wearable that explores exactly that!!!

A humanoid arm + hand prototype made of balsa wood

B15 HoloBot on Windows 10 IoT Core (Raspberry Pi 2 Model B) + Arduino.

Take photos on a Windows Phone and display them on a matrix of 48x48 RGB LEDs, using the Windows Remote Arduino library.