.Use your hairdryer to soften the plastic at the top of the bottle neck
.With your hairdryer on high, wave it near the top of the bottle for a few seconds, until you see the plastic warping
Then use your fingers (the plastic will be hot but not burning) To push the top of the bottle inward, inverting the conical part into
. the body of the bottle
.The bottle should fold inward so that by pushing in the curved neck, you have created an even cylinder on the outside
.Use a drill or a hammer and nail to poke small holes in the bottom piece of the bottle, which you had just removed
.Trace the bottom of the bottle on a coffee filter or landscape fabric and cut out the circle
.Cut a small hole in the center of the circle, the diameter of your plant stem, and cut a slit from outside to the center hole