Doing what he does best, Bill Hammack, AKA The Engineer Guy, spends an enlightening 13 minutes explaining not only how two-liter plastic soda bottles are made, but also how their seemingly simple ...

Engineer Guy Bill Hammack explained the ingenious design behind a recyclable two liter PET plastic soda bottle.

This is a screenshot from a video tutorial on making your own prosthetic parts from 2-liter soda ... see the clear plastic soda bottle which fits over the form after the bottom was removed.

The main portion of the build is made out of plastic soda bottles (2 liter size) to end up with ... After gluing a cone (the blue thing) to the bottom of the bottle, it receives the parachute ...