I thought of this as a simple panel event. Several shot glasses of differing flavours of tea are made and the contestants draw a number and pick the corresponding shot. They must determine what the flavour is. The winner is the last player who has correctly guessed all their tea flavours.
For added excitement, we slip in one cup a really nasty flavour and whoever gets that automatically loses.
(I have submitted this to the events team; just awaiting a response)