In the 1960s, instead of going to a spa for a head massage, people could use an air-powered scalp massage helmet.
Massage Helmet
The urban window baby cage, used in the 1930s, was intended to give infants fresh air to boost their immune systems, but was criticized for dangling babies above city streets.
Urban Window Baby Cage
Siamese dancing shoes, featured in a 1981 spoof catalog, were designed for ballroom dancing to help couples stay synchronized.
Siamese dancing shoes
Before Auto-Tune, there was the yodel meter, a device from circa 1925 that measured the pitch of a singer's voice.
Yodel meter
Inventor A.J. Grafham attempted to improve road safety in the 1930s with a sponge rubber bumper designed to protect pedestrians from car accidents.
Rubber bumper
In the 19th century, barbershops adopted mass shaving machines, allowing them to shave multiple men simultaneously.
Mass shaving machine
Making eating spaghetti easier, a spaghetti aid was invented to quickly wind noodles around a fork, which has seen a resurgence with a battery-powered version in recent years.