In this video, we learn how to make an airsoft gun silencer out of a spray can bottle. First, you will want to take the bottom off of an empty spray can bottle. After this, make a mold of the can inside of a large piece of foam, then make a hole in the middle of it. After this, drill a hole into the top of the spray bottle and remove the bottom. Now, push the foam piece into the bottom of the spray can bottle and push the bottom back on. To finish, place the hole of the top of the can onto the gun and you will be able to shoot it with a silencer on it!