"Blackheath with the sticks, the less obvious side was Rag Morris from Bristol. "

Curiously, according to Rag Morris's website it wasn't them who were 'less obvious' - they had noticed the nuns, the bhangras, the Welsh rugby choir... but don't seem to have spotted that there was another morris side there:

"IT'S THE OLYMPICS!
Yes it was us! 24 members of Rag Morris performed on stage with Eric Idle, an opera singer, roller skating nuns, roman soldiers, angels, bhangra dancers, Scottish pipers and a cross-dressing welsh rugby choir as part of the Closing Ceremony of the London 2012 Olympic Games! "