Why did the '50s produce so many pink bathrooms? Pam Kueber, publisher of "Save the Pink Bathrooms," credits one trendsetter: Mamie Eisenhower, the First Lady from 1953 to 1961, who adored the color.

She wore a pink gown, glittering with 2,000 pink rhinestones, to Ike's first inaugural ball, and her bathroom was pink down to the cotton balls. After she redecorated the private quarters of the White House, reporters dubbed it the "Pink Palace." Her signature hue, "Mamie Pink," became ubiquitous in fashion as well as kitchens and bathrooms, and ultimately the iconic hue of the decade.