Step 1: To Cut a Bottle With a Shoelace You Need!
How to cut a bottle in two with a shoe-lace!?
We have discovered how to cut a bottle with the thread, but how is it possible to handle the sharp glass edges?
Step 2: You May Use an Emery Paper or a Stone for the Knife Sharpening.
The last procedure should be handling of the bottle edges, immersed into the water beforehand.