I found this really neat site, Acme Heart Maker, that allows you to make your own conversational hearts for web pages and blogs. I had a lot of fun playing around with this!!!
According to Info Please, "Conversation hearts were invented in the 1860s by the brother of NECCO's founder. These first hearts had printed paper notes tucked inside. The lengthy, old-fashioned sayings included such wistful thoughts as 'Please send a lock of your hair by return mail'.
Some favorites among the more than one hundred Sweetheart sayings have been in circulation since the hearts were first factory-made in 1902. These classics include "Kiss Me," "Sweet Talk," and "Be Mine." Sometimes a motto is discontinued for a time and then makes a reappearance; others are gone for good. Sayings considered outdated by NECCO include the funky "Dig Me" and the cheerful "You Are Gay."
NECCO must produce about 100,000 pounds of the candy hearts every day in order to meet the Valentine demand, when about 8 billion hearts are sold in six weeks." Candy Heart History