Set the holiday mood with your Raspberry Pi: 
About three years ago, I shared an article on how to create a musical light show with the Raspberry Pi. I followed up a few months later with SSH into your Christmas tree with Raspberry Pi. A few things have changed since then, and this article is an update to the two originals.
read more: Opensource.com ansilva
Supporting Open Source.
Have you tried: Diving with Sharks?