Last year for Valentine's Day - I decided to see how many little notes I could hide for David to find throughout his day. I started by taping one to his steering wheel, placing one in his lunch and mailing one to his office.
I made the above wheel for the one I mailed to his work - since we don't have a color printer - I colored the little pictures in with colored pencils. It contains a variety of word and picture combinations that you paste inside the wheel to create messages to your loved one!
I found the idea on Martha Stewart's web site and you can find the template here.
I also sent one note by e-mail to his work which included a candy heart message made here.