Funky Relays?

I was thinking about running recently and remembered that at one time (1970's, specifically) there was a trend to run some off-beat, but fun, relays. For example, we used to do the 2 person/10 mile relay - two people alternate 1/4 miles until each have done 20 intervals (5 miles each). We also did a 10 person, 24 hour relay - each person runs a mile in sequence and then keep doing that until 24 hours is up. There was also a 100 person/100 miles relay - each person runs 1 mile until all 100 miles is done (This is a beast to organize.) Do swimmers ever do anything like that? For example, the 2 person/10mile relay might be adapted to 2 person/4000 yard/meter relay - the people alternate 100's until each has done 20. I do seem to recall in Wennerberg's book an open water 2 man/24 hour relay of alternating 1/4 miles and I also seem to recall geochuck being in it, but maybe I'm hallucinating. George? Edit: Just remembered one. Alan Turing (google him) invented "Round the House Chess" and a friend and I tried this once. You set up a chess board and the person has to make a move in the time it takes his opponent to run around a house (or other structure). Mike and I did it around our High School gymnasium and drew a huge crowd. (I won.) -LBJ