Orgasmatron: false advertising?
Australia's Orgasmatron is extremely effective at making one's head tingly. Techopolis wheels it out for excoriation on the grounds that "Orgasmatron" is a deceptive product name, given that it does not actually give one orgasms.
To be quite frank, this particular criticism is disturbing. It suggests that the author—who I am sure is a perfectly normal, well-balanced person—looked at the writhing profusion of metallic spines, concluded from the name that it is intended for genital use, and was later disappointed.
Wikipedia has a list of classic Orgasmatrons from fiction. The one you're thinking of, however, was in fact called the Excessive Machine.
Deceptive Product Names - Orgasmatron [Techopolis]

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I have one of those, and the effect it has on people is actually pretty close to an orgasm if not better. The 1st time someone did it to me something primal and euphoric came over me and I howled like a wolf.
The horror of walking around a shopping mall as the kiosk vendors of these chase you, attempting to sell one of them by jamming it into your head.
I've used it on folks and heard resultant noises that approach orgasmic.
No, I'm pretty sure the one I'm thinking of was called the Orgasmatron.
These things often show up at Raves, there's always someone with one. Their name is a bit more accurate under those conditions....
Those spray bottle fans with water are also popular.
Its a cork from a wine bottle with some bendy metal legs and a ball on top.
Cool.. how much?