My testicles sweat and stink like dead fish, is that normal

Well,
the Axe Detailer cleans your balls.

maybe you should shower every once in a while....

you should spray some hair spray on them that should help :D

Depends. How often do you shower? And when you do shower do you use a bar of soap or shower gel/body wash? Because body wash does not clean as well as bars of soap do and it's just gross to shower with only body wash.

Lol oh wow. Clean that area well.

A friend had a similar problem with sweat in a skin-fold area. He used an anti-perspirant body spray (specifically an anti-perspirant and NOT a deodorant) and said it was extremely effective there (even moreso than it was in the underarms it was designed for). If you're shaving, though, be careful not to use it on broken skin. It's going to sting like hell.

Skunky balls?

Shave your balls regularly or at least keep your pubes trimmed, shower daily and change your underwear everyday then your balls won't smell like a skunk's ass.

Lmao, Im a girl, so Im not 100% sure... BUT I know my fiance sometimes uses baby powder to stay dry & they (balls) never smell. :) He works construction & sweats all day, also...he takes 2 showers a day (morning & after work)