How to make cool horn from a big grass.
You will need a huge grass that you can find in forest,on some villages or field.
Step 1: First Step
Find that big grass than pull it out.
Step 2: Cut
Now you need to cut it.
Cut it on that part there is a bump
Step 3: The Final Step
Flatten end of straw,than try it.
Step 4: Finished Horn
Picture of a finished horn.