Picture of
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. http://www.instructables.com/id/How-to-Make-a-Desktop-Viking-Catapult-with-a-bonu/

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

Here's a video of it firing:

Step 1: What You Need:

Picture of What You Need:
- 5 pencils
- 2 pens
- A plastic bottle cap
- At least 14 elastics
- A craft knife or pair of scissors
M3G (author)  pandyboohoo1 year ago
Love it! Reminds me of the thing, that little genius makes in "Little Man Tate" – cool
weredude3 years ago
this is a really great instructable! I shall make one in the near future. also please check out my office supply catapult!
M3G (author)  weredude3 years ago
Thanks! Your catapult looks good, how powerful is it?
weredude M3G3 years ago
mine shot about 30-35 feet, it really depends how far you wind the pencil up in the string.
mikeasaurus3 years ago
Looks great! Do you have any video of it firing? How far does it shoot?
M3G (author)  mikeasaurus3 years ago
Thanks! It shoots between about 20 and 35 feet. I'll make a video of it firing as soon as i have time.