Windows used to be cool! As a kid I remember the Dangerous Creatures CD [1] came with a custom theme for Windows 95. It would change all the icons to cool animal stuff. The "My Computer" icon would change to a frog, the Recycle bin icon would change to a fish, and my favorite, the waiting icon for the mouse cursor would change to a Wasp!

[1] https://en.wikipedia.org/wiki/Microsoft_Dangerous_Creatures