I sort of imagine something like the Wii controller - make the right mystic passes while holding it, and you connect to anyone you feel like.

(Totally OT: has Peter seen http://news.bbc.co.uk/1/hi/health/6244715.stm? Dave's Insanity Sauce is the thing for brightening up diet soups: it's nice to know that I'm fending off cancer and diabetes.)