Introduction: "The Viking" Catapult

This should teach your co-workers who's boss. Spend half an hour making it, then have hours of fun hassling your co-workers or target shooting. Mine shot a pencil eraser about 30 feet easily.

Check out Kiteman's version as well.

Thanks to everyone who voted for me in the Office Supply Contest!

Here's a video of it firing:

Step 1: What You Need:

- 5 pencils
- 2 pens
- A plastic bottle cap
- At least 14 elastics
- A craft knife or pair of scissors

Step 2: Making the Frame Part 1

- Take three pencils and arrange them in a triangle and use elastics to hold them together. This will be the base
- Use an elastic to attach another two pencils together into a V shape
- Then take the V shape and use elastics to attach the forks to two of the corners of the triangle

Step 3: Making the Frame Part 2

- Place an elastic over one of the arms on the V and pull it through itself (see the first picture)
- Put the pen through the elastic as shown in the second picture
- Pull the elastic tight and wrap it around the pen and frame
- Repeat this for the other side
- Do the same thing with the other end of the pens near the back of the frame

Step 4: The Ammo Pouch

- Use the craft knife to cut a hole in the top of the plastic bottle cap and three in the sides roughly equal distances apart
- Thread elastics through the holes in the sides and pull them through themselves to secure them
- Tie a knot in another elastic and thread it through the hole in the top of the cap, with the knot inside the cap
- Make sure the knot doesn't come through the cap when you pull the elastic

Step 5: Bringing It All Together

- Attach the pouch to the bottom of the frame the same way you attached the elastics to the sides of the bottle cap
- Loop two of the elastics over the pens
- You can repeat these steps to increase power
- To fire place your ammo in the bottle cap and pull back on the elastic protruding from the back of the cap, then release

Office Supplies Contest

First Prize in the
Office Supplies Contest