Gatorade Bottle Oxygen Tank

I made an oxygen tank from random things I had in my house because I want to breathe underwater without having to pay $1000 or more for an oxygen tank so I made a homemade one.

You need an empty Gatorade bottle, A straw, some paper towels, A pair of scissors, and maybe a knife.

First, cut a hole in the Gatorade bottle's cap, like in the image. If you can't cut it with scissors cut it with a knife.

Get a piece of paper towel and put it in the hole that's in the bottle cap to seal it like in the image.

Stick the straw in the hole with the paper towel closing it and screw the top on to the bottle and voila there you go.