This is a low to no cost arrow mainly built for knex guns and x bows with slide barrels but can be used for other things.
It is made out of one of those balloon holding things shown in pic
Step 1: Gather Equipment
you will need a knife scissors and a balloon holding thing for this instructable
Step 2: Step 1
Take off the balloon off and the thing which holds the balloon on
Step 3: Step 2
cut the thing as shown in pic then when it all cut so it has 3 spikes put it back on to the stick
Step 4: Sharpening
u sharpen the rod which you hold
Step 5: How to Load
put the stick in the barrel and put the elastic band on one of the spike things on the back.