I don't know if other people do this (am I crazy ?) but I produce 3-4 sets of tasting notes for each whisky (from JM, MJ etc) and make little handouts for everyone. They can then add their own notes and really try and sniff out the different flavours.
Had this the other day, with a friend and it was after lunch
Black Bottle
Bowmore 12YO
Talisker 10YO
Lagavulin 16YO
Laphroaig 10YO cask strength.
Ardbeg 10YO
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Put away tasting notes, then repeat this cylcle:
Lagavulin 16YO (insist this is the best one)
Laphroaig 10YO cask strength (insist this is the best one).
Ardbeg 10YO (insist this is the best one)
Order take away.
Go to pub.