Top Valentines day Pranks

If  you can get into his apartment or bedroom when he's not there, you could plaster every surface with pictures of you (weird pics are better) with "I Wuv U" or some other silly message scrawled on every picture. Spend a few bucks at your local photocopy store to mass-produce your weird photos in the hundreds.

The "stuff his car with inflated balloons" prank I hear all the time is old. But here's a variation on that. Cover his car (or bike, or refrigerator) with hearts! But you don't want to damage the surface of his car/bike/whatever. So you use magnets! I couldn't find heart-shaped magnets in bulk, but you could order a pack of 72 one-inch rectangular magnets

Glue a heart to every magnet. Stick them all over his car, and voila! He has a car that is dotted with hearts! Or you could glue *anything* on those magnets. Suddenly his car is dotted with 72 Elmo heads! Or 72 cookies (stickers OR real cookies!) Find something round that looks like big dots, and glue it on those magnets to "polka-dot his car".

  Even sillier: buy the 12-foot lengths of magnetic strips. Glue stuff to the strips before applying them to his car. Even better, if you have craft skills, see if you can find some fake fur at the fabric store, and buy 2 yards of it. Cut the fur into one-inch wide strips that are six feet long. Attach two 6-foot fur strips to each 12-foot long magnetic strip. Glue or hot glue might not work, but with a needle and thread you could loop the thread through the fur and around the magnetic strip about every 10 inches so it stays on. The finished product is several 12-foot-long magnetic FURRY STRIPES that you use to decorate his car! I vote for hot pink fur! Here are the magnetic strips I'm talking about:

Easy computer prank: set up a ridiculous screensaver image. It can be a weird animation or picture, or, it could be the kind or screen that looks like your computer's hard drive has failed (but don't give him a heart attack!)

Hard computer prank: takes a bit of skilled effort in advance: go to Tucows.com and download a font editor utility. Edit a font so that the letter "i" is dotted with a heart. Do all this on your computer, and save the font file on a flash drive. Sneak into his computer, download the font from the flash drive into the system's font collection, and make it his default font for the internet. I did this to someone before--it's very subtle. They really crack up when they suddenly notice that every "i" is dotted with a heart.

  I also like the human heart idea suggested by "Justice"--guys who like horror flicks might actually love it. And since many guys think valentine's day is an annoyance, they might like the irreverence of the "here's my bloody heart" message. Could you get a cow's heart from the local butcher? Er, that might be too gross for you to deal with.