This is what you will need to make these blowdarts:

-straws
-smoke filters
-lighter
-scissors

Step 1: Strip Filters

Remove the paper from around the filter.

Step 2: Roll and Squeeze!

Now roll and squeeze the filter into the end of the straw.

Step 3: Trim Up

Now trim the straw to the desired length.

Step 4: Melt the Tip

Melt the tip and shape it to be nice and smooth.

Step 5: Flare and Fire.

Flare the end of the filter and load into whatever you are using to fire your mini blow darts.

If you arent sure what to use you could put them into an air rifle or nerf gun(modified) or you could just use a straw :) . Watch out for my upcoming instructables on nerf/diy fun!