FUN delivery Old Fart Prankscriptions: Updated Rattlesnake Eggs for Birthday Christmas Office Pranks Gag Joke Gifts

This is a simple prank that is appreciated by kids of all ages and way more fun than a birthday card.

You may have seen this in the past as a cheap thrill called Rattlesnake Eggs, but we updated the copy to something more relevant and witty for today's audience.

You simply wind the device inside the envelope, give it to the unsuspecting recipient and watch him or her jump (or totally FREAK OUT) upon opening.