My 11 year-old son saw a video on YouTube demonstrating how to make your own rubber band gun using household items. He HAD to try it! It is so cool that I told him we had to post it here.Materials Needed:
Standard 12 inch ruler
3 rubber bands
1 short pencil (about 3 inches)
1 long pencil (sharpened with the lead broken off)
Tape
Step 1: Tape the short pencil to one end of the ruler (on the flat side of the 
ruler) as shown leaving about 1/4 inch of the sharpened end sticking out past the end of the ruler.
ruler) as shown leaving about 1/4 inch of the sharpened end sticking out past the end of the ruler. Step 2: Hold the long pencil perpendicular (pointed end up) to the ruler about 9 inches from the end you taped the short pencil to.
Step 3: Secure the long pencil to the ruler using two of the rubber bands by
looping the rubber band over each end of the pencil. Twist and loop the rubber band around the pencil as many times as necessary to tighten it down. This will be your trigger and the tighter you make the rubber bands, the further it will shoot.
looping the rubber band over each end of the pencil. Twist and loop the rubber band around the pencil as many times as necessary to tighten it down. This will be your trigger and the tighter you make the rubber bands, the further it will shoot.Step 4: Loop the last rubber band over the short pencil end and stretch it 
over the pointed end of the long pencil. The sharpened ends of the pencils will help your rubber band slip off a bit easier.
over the pointed end of the long pencil. The sharpened ends of the pencils will help your rubber band slip off a bit easier.Step 5: Aim away from people and pets, pull the trigger (bottom of the long pencil) and let 'er rip!
I gotta admit, this is cool!!!
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