Picture of oreo pump gun
This is about all the pieces you'll need. which would be couple pieces of wood,plexi glass,screws,a spring,bungee cord,a rubber band, a exercise band. Also the tools you would also need would consist of a hammer,drill,a vice grip,a band saw.
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Step 1:

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Cut the wood to the shape of the gun which will ultimately be 1st layer of the gun. so what you would want is the handle and the base.

Step 2:

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so after you have made the shape of the gun make an identical base which would be the middle of the gun,but dont attach anything yet because you will need to cut some off 

Step 3:

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make sure that there is two inches between each barrel so i did the model on google sketch up so that my measurements would be on point

Step 4:

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so after you do that last step get a piece of plexi glass if your able to try to trace the shape of the gun so that it is equal in size and length

Step 5:

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so after you trace the shape, cut it out on a band saw and line it up to the gun.if there are a couple of rough edges dont worry about it we'll be able to sand it down. so after you've figured thats the way you want it pre-drill a couple of holes so that it is alot easier to drill the screws into the oreo despenser. sand it down after it is completely even sand down the edges for a nice clean look.

Step 6:

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so next thing you want to do is cut a notch in the middle of the second barrel reaching all the way to the trigger 

Step 7:

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the next thing you would need to do is the pump. to do this all you need to do is measure the bottom of the despenser give it a little more room than you would need so that the side walls are close to the sides of the despenser
JonnyBGood1 year ago

I want to see the final product man! The anxiety is killing me

selias332 years ago
I'm really proud of you, Marlon. Remember -- this is the start of the new you. Keep studying, keep making, and keep publishing your stuff on instructables!
MrE2 years ago
Okay? So does this thing shoot oreo's or something.It would be nice to see the end product do what it is supposed to do.