I was actually apart of an interesting "Secret Santa" at a previous job. Everyone would buy a gift (we were all men so it wasn't too hard to choose something) then we would bring them to an impromptu Christmas Party at the bar. The boss in those days was a real scrooge, he would give us half the day off and we would have our own party lol. Anyways, we would all take a number 1 through 12 (there was 12 of us) and select one of the gifts at random to open.
#1 would select his gift and open it.
#2 would select his gift and open it HOWEVER if #2 liked #1's gift better he could swap it.
#3 would select, open, and could swap with #1 or #2 if he wanted
It continued like this until all the gifts were open. There was a bottle of Jack Daniels Whiskey which changed hands about 6 times lol.
"I have always thought of Christmas time, when it has come round, as a good time; a kind, forgiving, charitable time; the only time I know of, in the long calendar of the year, when men and women seem by one consent to open their shut-up hearts freely, and to think of people below them as if they really were fellow passengers to the grave, and not another race of creatures bound on other journeys." ~Charles Dickens