A series of Masters Tourney adventures that we wrote/ran for a Con one year, where the party has been tricked into taking on a task that will actually help a great evil power. All through the first two rounds, traditionally goodly NPCs keep attacking them, and traditionally evil NPCs keep showing up to heal them, etc. Final round, they're given the introduction and a few minutes to add non-magical gear, etc... then get told to hand their character sheets back in. They get handed another copy of the same character, but this time they only have their magic items -- because they're now in the realm of the dead, and those are the items that were buried with them.
Same year, same Con, the non-Masters-level tourney had one round where the adventure started with the characters waking up in a cave, with only a linen tunic and a stick with feathers attached along one edge. They'd been captured and were intended to be sacrifices (the sticks were to represent a sword in the ritual of sacrifice). They had to escape the room and make their way back to freedom. It was particularly interesting seeing the mage recognize things that could be used as spell components.
Same year, same Con, the non-Masters-level tourney had one round where the adventure started with the characters waking up in a cave, with only a linen tunic and a stick with feathers attached along one edge. They'd been captured and were intended to be sacrifices (the sticks were to represent a sword in the ritual of sacrifice). They had to escape the room and make their way back to freedom. It was particularly interesting seeing the mage recognize things that could be used as spell components.