In 1918, the Prostate Gland Warmer promised to "stimulate the abdominal brain!" The device consists of a 4.25 inch probe and a blue light bulb in a socket on a nine foot cord. When plugged in, the light bulb lit up

While the Recto Rotor was advertised as "The Latest and Most Efficient Invention for the Quick Relief of Piles, Constipation, and Prostate Trouble."

The Museum of Questionable Medical Devices Online