Maybe you've alreayd seen these on the back of a truck.
When a siting of these was first reported to me, I thought he was making it up. Maybe I'm just a little naive, because when I finally saw them for myself in Albuquerque, I assumed that they must have some other function, and they resemble what they apparently are by accident. It never entered my mind that anyone would have any reason for having something like this, or buying it on purpose. I googled and found that it's just part of a larger, more alarming trend.
(Sigh)
Now, I'll be the first to admit that there are things that my sisters do that make me embarassed to be a woman. Much of the time, we are our own worst enemy. I like to give guys a lot of slack because I know that women play woman games, and men often have to respond to that.
But, lets be honest - this ecoutrement is all guy. You can't blame this on us; it exists for no other reason than, perhaps, the fact that is completely sophomoric.
Actually, I take that back. Mini-me is a high school sophomore this year, and he says he'd never buy them. Why? Because he couldn't think of a reason he would want a pair of fake testacles hanging off whatever it is he's driving. He still thinks I was making it up.