Let's say there is a cash prize of a reasonably amount with the goal being to last as long as possible before asking to stop. (Just to be nice, we'll say that all participants get a smaller cash prize just for being good sports and taking the challenge). The set up is similar to the attached image, with their arms suspended and their feet placed in stocks. They have to endure full body and feet tickling at increasing levels of intensity until they give the signal/safe word to stop. We'll say the tickler is a neutral third party or somebody the contestants already know and trust. We'll also say we have a nurse or doctor their to administer first aid in case something goes wrong. Where would you produce and film it, and how would you go about making it a reality?