When it comes to computer hardware, there are lots of non-traditional products out there that are intended to serve a specific function, but do it with a flare of style. For instance, all computers need cooling fans of some sort to keep the air inside moving and your gear running cool.
You can put in a plain old fan that is black plastic or if you are the sort that cares about style as much as function you can opt for the LED lit models or something even more different like the Sharkoon 140mm fan that is made to look like a golf ball. I guess there are probably plenty of people out there who like both golf and PCs that might find this fan interesting. It would be perfect for your Caddy Shack case mod.
The golf ball fan spins at 800 rpm and can move 93.85 cubic meters of air per hour while producing 12.4 decibels of noise. The frame of the fan is black and the fan itself is a dimpled white plastic that looks like a golf ball. The fan ships with screws and other items needed for mounting and will set you back 12.99 euros.