You will need candle wax, a wick, matches, tape, cotton yarn, and cold water, and a pot to melt your candle wax.
There are so many cool things you can make with old glass bottles, but most of us do not know how to cut glass safely.
Here is a safe way to break glass!
Wrap cotton yarn around the glass a few times.
Then take it off the glass and soak it in alcohol or nail polish and then place it back on again.
Light the string on fire and rotate the glass bottle.
After about 20 seconds, submerge the glass in cold water and watch it break apart.
Next, tape the bottle back together. Now you have a candle mold.
All you have to do now is put the wick in, pour the wax in and let it harden.
When the wax becomes a solid you can remove the glass bottle.