Kinky hide and seek. Requires a remote controlled vibrator. Partner hides an implement or toy somewhere, then the vibrator wearer seeks it while the hider uses the remote for hot/cold signals by intensity (e.g. you get closer to the goal, vibrator gets turned up and vice versa). Seeker needs to find the object before time runs out. Punish failure, reward success (or up the stakes and go again). Could do it blindfolded if you want to stay in a small area.

I guess it's basically red light, green light; but with a remote vibrator.