Thanks, Jack ~~ & I found several on youtube,

eg, uploaded Feb 2007, "Charm City Rappers, Takoma Park Mini-Fest, Folklore Society of Greater Washington" ~~ 6 dancers working 2x3 ~~ all with several dancers, not just danced as solos like the one I saw all those years ago. There is indeed a similar tune for all of them, which is the one I heard then IIRC ~~ a variant of Greensleeves. The pipes used in the above example were not real clay ones, as a commenter pointed out adversely, but just metal tubes ~~ indeed one gets kicked at one point but doesn't break. The dancers in this one are not in morris gear, but in blue v-neck pullovers, white shirts and blue trousers, but there are morris-men standing around, some dancing on the fringe, in what is obviously a gym of some kind. The url is

http://www.youtube.com/watch?v=wloL_Fj8LIo

~M~