The Aquarium Screensaver
Being that I get this question all the time I figure why not make it my first blog post. So I have a screensaver that I have had for a very long time. (Fully Licensed). I used to work in a pet store when I was a kid so I get nostalgic about pets and aquariums. Since I don't really have the time or am home enough to have a full blown aquarium I run one in my screensaver.
Picture Here: 
Where did I get it? Here - www.serenescreen.com
How did I make the crystal have a logo...Just take your favorite logo and convert it to a bitmap. Yes a good old MSPaint bitmap.
Here is the HowTo: http://www.serenescreen.com/support/faq.php?productid=3#faq8_1330
I want to keep my first post light :)