I was showing the BlinkStick to kid[2] today and after a few blinks, I decided to make it speak Morse code. It was fun and quick, for I did not have to start from scratch. Morse code on a LED has done the same thing using a Raspberry Pi and a LED (I used their Morse code dictionary).
The Python code is available here: https://github.com/a-yiorgos/blinkstick-morse