Inventors find their inspiration everywhere: they see it driving down the street, at work, in the kitchen, and even while fucking -- Gizmodo has a number of patents with a sexual-pleasure focus
, most of which aren't particular scary nor different than things that have actually been invented. The "put a flower in it" is probably the oddest. I know people who would love that water massager...but in the intervening century since that was invented somebody came up with massaging shower head. Hindsight is always 20-20 for inventors, including ones that invented a penis you strap to your face.