Where in God's name did you ever find that picture, daylia?

Vibrators. They come in every size and color and a great many shapes. You can get double-ended ones too, but I don't think there are any triple-ended ones on the market yet. (I may be wrong about that.) The important thing with vibrators, I should think, is to get the speed right and avoid over-accelerating when in the passing lane, as this can strip your gears! But I am only theorizing. A good vibrator goes from zero to eighty in .15 seconds. Also, one should be careful to avoid electrocution if the vibrator casing gets damaged. Putting a rubber condom over the vibrator can help prevent this highly disturbing event.