In the display of true geekness, Satish Mathew and Marcel Ortiz have created a PowerShell script that will play Jingle Bells on your computer speaker.
No longer will your machines have to sit in silence! You can run this on any computer that has PowerShell installed.
I have attached the script to this blog post (see jingle.txt below). You can also see it in the blog post over on the PowerShell team blog.