This is a simple, less than 30 minute project I put together after one of the heads of my (very inexpensive) arrows fell off after constant stress on the head. I used a new arrow for the sake of demonstration.
DISCLAIMER: I AM NOT RESPONSIBLE FOR ANYTHING BAD THAT HAPPENS WHEN USING THIS ITEM. IF (NOT) USED PROPERLY, IT CAN RESULT IN UNSEVERE TO SEVERE INJURY. YOU HAVE BEEN WARNED.
Step 1: Get the stuff
All you need is a target-style, hollow arrow and maybe a pair of pliers.
For the darts, you need Q-Tips and a pair of scissors