After recently visiting a Souvenier Shop in Missouri, while touring, my friend had bought a Rattle Snake Eggs prank. The price was over 6 dollars for materials that cost under a quarter. So I decided to recreate the prank but with different materials, and make it easier to work. This project will only cost under a quarter if you search for the materials, which aren't hard to find.

Step 1: Materials

There is only 4 different things you need:

- A soda bottle cap
- A paperclip
- A rubber band
- A paper envelope, or paper pouch.

Step 2: Assembling the Prank Part 1

The first step is to take a regular paper clip and bend it, into a shape that is a rectangle, missing one of its longer sides. After that you must take the rubberband and put it on the paper clip ends, so you can keep it tight and working.

Step 3: Assembling the Prank Part 2

The next step is to take your bottle cap, and put it between the rubber bands.

Step 4: Decorate the Envelope

Now to make the prank seem less conspicuous, on my envelope I wrote Rattle Snake Eggs, and Caution: Keep in a cold environment to prevent hatching. So there is a couple phrases that could be on the envelope.

Step 5: Twist!

Now you have to repeatedly twist the cap, in the rubberband. Do this at least 25 times or more, that way there will a longer lasting effect.

Step 6: Set Up the Prank

Now carefully holding the twisted trap, place it in the envelope, then after that close the envelope. Make sure the trap can not be seen.

Step 7: The Prank

Now when some one opens up the envelope, the closed walls, will open and the prank will start untwisting an it will hit the walls and make a loud unexpected noise.