It is obvious what comes first in your mind when we talk about condom – safe sex. Yes, it was invented for that purpose. On this post, you are not being triggered to be on fire, but to make fire.
The moment that you need to make fire yet you have no lighter or matches, check your pocket. Perhaps you have prepared a condom for an emergency.
You can use it to start fire by applying the same principle on making fire using a magnifying glass. All you need to do is to fill the condom with water and place it on direct sunlight over and easily ignitable material like fine paper, dry grass or coconut husk.
Make sure that the sun rays pass through the two sides of the condom with water having convex shape. Watch the video below.