Remembered seeing a mention of such a thing over at Danny Choo’s a while back, but didn’t think much would come of it (excuse the pun). However, my eye was caught by this in an Akiba adult department store – and how accommodating it looks! Not a user, or an American, so unfortunately I can’t comment on whether it is truly sufficient for American use, although the flattery probably also extends to Europeans.
This store had several floors of such devices, and Tenga were tastefully (or as tastefully as can be in such a store) displayed throughout.
Absolutely inexplicable? Lucky Star characters in a probably unauthorised promotional venture. The text says “Dutch Wife”, naturally enough. The one below says “large scale hole”. Delightful.