Looking for a way to practice walking the cup without a torch. I sit at a desk at lot during the day at my regular job.

I would swear I saw on this forum or YouTube or somewhere where a person practiced walking the cup with a pencil and paper. I can't recall if he had a pencil stuck in an old torch body or what but it worked. One could see the design (I.e. figure-8, etc.) on the paper.

I have a lot of times when I could be doing that.

Anyone recall seeing the instructions for this? (Or another method that works.)