With planning and some household items, you can have a life saving tool for emergencies.

Step 1: Supply Time!

- Baking soda
- Vinegar or lemon juice
- Water or soda bottle
- Tissue
- Tape or rubber band
Pretty cool how this is so simple and works well. Did you know that most foam extinguishers have extracts from animal fat. It helps it form a surface. You might even be able to skip that and use a little cheap soap. If your dad is a good guy, you should think of as many good excuses as you can, e.g. school work, to get him to help you buy a eeepc. even second had and they work for most every thing you need. Then, he wouldn't need to worry about his computer.
also i did this i took a pin with the white ball at the end heated it up and poke a hole in the bottle cap and put that on instead of a rubber band also with the hole in the bottle so this way it squirts the mixure out of the hole when the reaction start between the two chemicals
great instructable dude
This really needs some actual photos.
i am doing this on my dads computer, and i cant upload pictures from my camera, because he said

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More by barryjacob:How to make a fire extinguisher Chocolate covered pretzels 
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