8-Bit Dynamic Life Interactive T-Shirt: $17.99 to 24.99

Buy two of these shirts. Give one to your sweetheart and keep one for yourself. When you're wearing this shirt away from your gal or pal, only a few of the hearts will light up. When you get close to your partner, all the hearts will glow. If you don't have a humanoid sweetheart, you can also buy a transmitter that does the trick. Place it by your computer, Xbox 360 or mirror, and watch those hearts light up as you approach. ThinkGeek.com -- Jason La, Los Angeles Times
Copyright © 2018, Los Angeles Times
EDITION: California | U.S. & World