Hello everyone!
I rarely practice with a straw but I tried yesterday and today. First video, a plastic straw that turns with one hand. Second video, without hands. Third video, a straw cardboard that is slightly larger and heavier than the plastic straw.
This is the first time I succeed to completely turn straws with and without hands. Usually they did not make full turn. Plastic straw is very sensitive to static electricity then it is better (to be more credible) to rotate without moving the hands (unfortunately there way too often people move their hands to turn the plastic straw). Best to do it with no hands. I found it easier with straw cardboard as the track on the video. It is more difficult to rotate an object of this form.