The original, awfully awfully polite and unfailingly civilized SL Neverending Garden Party/Fife & Drum Marching Band.
Prime objective: the social consumption of odoriferous comestibles (Stilton and kippers our speciality) whilst marching in perfect time step (wtih kilts!).
The management regrets that membership is only open to the hand-picked elite of...um...well anyone really - or at least anyone who can put their hand on their heart and swear honestly that they have never, not ever, made that awful bloody '^^VV^Howlz^VV^^-orwhaddevahdafuggitiz^^' noise. No - not even in a moment of erotic abandon. Especially not then.
The rest of you? Sure - park your oligarchs at the door and help yourself to the weltschmerz (it's home made!).

Disclaimer: any inkling of a connection between your virtual reality and mine is entirely coincidental. No actual musical instruments were injured in the making of this group. Cucumber sandwiches optional. Elevator pitch on file with building management.
EDIT: 'tis an actual Group thingy, btw - actually in SL for you to actually join, should you so choose (and which I would most highly and respectfully encourage you to do). Caveat: joining would be pointless. Which is, of course, the point.