Browsing through this vintage Japanese catalogue of sex toys and enhancements at Rotten.com, we realized how little things have changed since the 1930s: there's the same assortment of male masturbators, french ticklers, and penis enlargement creams you still see on the shelves of adult shops today. (Then again, we do have a pretty hard time these days finding musical ben-wa balls, doll-shaped condoms, and that elusive Happy Powder to "take off bad smell and increase her organistic feeling very much". So maybe things have changed a bit after all.)
Japanese Sex Catalogue (rotten.com - thanks Phil)
Previously: Sex Patents