Tools and materials:
2L soda bottle
Thick twine or thin rope
Use razor to cut off bottom third or so of soda bottle.
Wrap duct tape around the bottom part of the soda bottle.
Make sure that half of the duct tape is on the bottle and half is above it.
Cut slits about 2-3? apart in the duct tape and fold over.
Punch two holes about halfway down the duct tape. Cut two more on the opposite side.
Cut string and thread through two of the holes form the outside in. Do the same on the other side.
Find a nice sunny spot to hang your planter and add water to soak the soil
until it drips through the opening. Cover the opening with some layers of
cheesecloth, garden bark or mulch to help keep the soil moist and prevent
rapid drying out of the soil.