Rhode Island Novelty Joke Rattlesnake Egg Envelope, Set of 6
Amazon.com Price: $5.88 (as of 08/04/2022 08:42 PST- Details)
This envelope contains a device that when open it will rattle and startle the person. Great practical joke and easy to use. Just wind up the secret devise and place it in the envelope, when they open it, it will unwind and make it rattle.