Oh the keys. One of my most triumphant. An elegantly simple but very effective joke that will unleash all sorts of frustration on your victim.
Take an old keyring, and throw a couple of old keys on it. It doesn’t matter what they are, as long as you don’t need them any more. For goodness sake, DO NOT use keys you need. I think you may find that this joke will seriously backfire if you do!
You need space on the keytag to write something like: “If found then please call (Name of victim) on (Victim’s Phone no) for $20 reward.”
Once you have the keychain set with the keys and the message, then “accidently” drop these keys in a high profile area, like a carpark, shopping mall, hehehe or in a strip club.
That’s all you need to do. Your victim will get called, and will wonder what the heck is going on. And the best thing is, he will have no idea who did this.
If you really want to get your victim, you could always make up lots and lots of keyrings, and scatter them all over town. The more there are, the closer you victim will come to insanity.