I shouldn't need to explain to you why this mouse from Thermaltake is absurd, because I'm assuming you can look at it for yourself. But, on the off chance any of you are vision impaired, the Black Element Gaming Mouse Cyclone Edition looks like something straight out of those Tex Avery cartoons about the future.
The ridiculous fan is detachable, which is probably for the best. It's specifically noted that the fan device "generates only 21.7dB sound level, below the library's average noise at 30dB." So, rest assured, you can bring this bad boy out in public knowing that a sweaty hand won't be able to stop your gaming.
I'm no engineer, but last I checked, sweat tended to come from the palms of my hands.