If I wasn't in the middle of a storyline, I probably would've done some kind of website-related (or website-not-found-related) gag, since this is #404.
TRANSCRIPTION COURTESY OF JOSEPH HOUK - (BG, out of hearing range of Butterfly, to CW) "There's gotta be something we can do to jog her memory!" (CW) "I don't know, Beth... I mean, we are dealing with a Woodstock veteran here. If she can't remember us, it's pretty hopeless." (BG) "Well, this is... anticlimactic." ("Neptune" aka Ned, entering in from behind them) "WHAT'S anticlimactic?" (CW) "Butterfly doesn't remember us... I mean, our moms from Woodstock!" (BG, realizing) "Wait... are you Neptune?" (Ned) "Well, it's just Ned now. I haven't gone by my old hippie name since the Eighties. But anyway, I've got just the thing for customers such as yourselves! (to Butterfly) BUFFY! Time to get the special stash!" (BG) "Special stash..?" (CW) "Do I even want to know what that is?"