Make a Blade From Discarded Cigarette Filters
You will most likely never need to do something new from discarded cigarette filters, but if there is one thing you can find just about everywhere it is cigarette butts, and if you ever need some know-how, this video will show you. that you can survive – or just show your friends a funny MacGyver trick.
Make no mistake if you ever get stuck somewhere without a blade (which shouldn’t be if you have a good EDC knife or multitool) , chances are you’ll find filter butts in good enough condition to make one of them definitely better than finding something sharp enough to cut. However, you will still need a lighter or some other small flame and rock, as shown in this video by Russian YouTuber Tony (who also points out that this is, as you might have guessed, a prison trick).
Heat the edges of the cigarette filter until they are soft enough to mold, but sticky enough to hold their shape. You will want to use two or three filters for this, but when they are warm and soft, press them down as evenly as possible until they are thin but strong. Then grind them on a smooth stone until you get the edge you want. You can actually get surprisingly thin, as Tony demonstrates on the hot dog at the end of the video.
This will not be the most effective blade, especially if you need to cut through something thick or protect yourself, but if you need the blade for something else or are in a quandary this is something to keep in mind.
DIY: Cigarette Filter Blade (Hacked Version of Survival Life) | Russian Tony (YouTube)