What you need:
- 10 pencils
- at least 14 rubber bands
- strong string
- bottle cap
- scissors
- something to make a hole in the bottle cap
Also please remember to vote for me in the office supplies contest.

Step 1:

Do what the picture shows.
<p>here is the link: </p><p><a href="http://www.amazon.com/Mini-Weapons-Mass-Destruction-Implements/dp/1556529538" rel="nofollow">http://www.amazon.com/Mini-Weapons-Mass-Destruction-Implements/dp/1556529538</a></p>
<p>well, you could just use a plastic spoon. but that works out too! you should get this book called </p><p>Mini Weapons of Mass Destruction: Build Implements of Spitball Warfare</p>
<p>it came out great</p>
<p>i just tightened the stick i put in the string and it shoots even further. </p><p>A helpful tip : instead of putting a hole through the bottle cap to attach it, just tape it ( it is easier and works just as good).</p>
<p>this is it!</p>
<p>the instructions were also very clear!!</p>
<p>I Made it!!!!!!! It came out awesome. I did one modification though; I made mine with popsicle sticks. I had to apply masking tape to the corners to strengthen it. A helpful tip: put a small piece of wood of popsicle stick (or anything small) and use that to twirl between the string, then tape or glue on your catapult arm(a pencil or popsicle stick).</p>
<p>did it er um '-' sorta</p>
<p>very good and easy instructible but i don't now why mine looks like a duck</p><p>D:</p>
Great job on the directions! Very easy to follow :)
Nice first project - you ought to mention it <a href="https://www.instructables.com/id/Rewards-for-New-Authors/" rel="nofollow">here</a>.

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