How to Make a Wire from a Plastic Bottle!

Cut a soda bottle into a spiral. The width of the strip in the picture is about 4 mm. [1]

2

Sit and hold a hair dryer (or a heat gun) between both knees. Heat the plastic strip and wind it around while pulling it with both hands. (Polyethylene terephthalate [PETE] plastic becomes soft by 70 ℃.)

3

Remove the strip from the hot air occasionally to allow it to cool down and fix the shape.

4

Continue until as much of the plastic strip as you want has been twisted.