Are you tired of taking samples of Earth out the ground, or wasting time looking for them crap plastic ones?
Well look no further because I can tell you how to make your own custom bar ends like these:
Step 1: What You Need!
What you will need:
Aluminium rod as with the diameter your bar ends to be (you can use copper, steel etc...)
2 grub screws or 2 tiny allen bolts
Tap and wrench