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How to make an airsoft land mine
Get a 12 oz.
Soda can. Cut it so you get two halves, top and bottom.

Select from:
[i] Unfold one half so that it is sticking up in the air, how big you want it is up to you and you will be putting a short tube on the bottom half. Now divide it up into 10, you have two tin cans of soda plus an empty can.
[ii] Place one part soda in the top, one in the bottom. Be careful, as soda can be hard.
[iii] Lay one small square of tissue paper in the bottom half of the can. Put the firecracker in next, poking a hole in the side of the can for the fuse and feed it through.
[iv] Put about three or four sticks of wood on either side of the soda can. Cut it into four pieces and screw on a 1 on and middle cavity.
[iii]