A harmless idea for an April Fools Prank to your mates truck. Sneak up to their truck in the night before April the 1st and cover it with sticky post it notes! You can use different colored post it notes for this prank to make it a bit more interesting. It will take a long time if you're pulling this prank on your own, so get your friends to help. Your victim will have a funny surprise when they wake up on April Fools Day to find their truck like this!