Handy Vibe, the steampunk sex toy
Not sure if this qualifies more as steampunk or as something from the bottom of a 1950s motel bed, but the Handy Vibe looks like it might just vibrate your hand off of your arm if you insert enough quarters.
Handy Vibe comes from a long line of super-strong vibrators commonly used in Japanese adult films on squealing girls. Typically it’s of the giant Dendou Massager variety, but there are all kinds out there.
With the unfortunate mosaic censor on Japanese porn, there tends to be much more focus on the “idea” of the sex, meaning that there are a lot less closeups and more focus on costumes, sounds (not annoying music like American porn), and giant vibrating toys that rattle the lucky lady’s fillings out.