Looking for a word.?

I'm trying to organise a specific kind of Community event and was hoping there's one word that describes it.

I've seen documentation of one form of 50's UK Coronation event when everyone brings a table/chairs & potluck meal into the street for a community meal.

(just as a recent reference - & for any Dr Who fans it was what was being set up at the end of "The Idiot's Lantern")

Just looking for something that describes the combining of tables/chairs/potluck & community into one or two words.

Thanks in advance.