8pm: ‘be there and be square’ @ the 4rd annual nerd nite nerdtacular: three presentations, a performance by palomar and science acrobats, more. galapagos, $15.
10pm: burlesque gameshow ‘this or that!’ celebrates its 10th anniversary (and final show) with performances, giveaways, more. sideshows by the seashore, $15.
11am-5pm: purveyor of all things cute fred flare lures crowds with pizza + snowcones for its warehouse sale in greenpoint.
12:30-11:30pm: 23 established and emerging female musicians incl. holly miranda, xylos, mira stroika, and sweet soubrette play the tinderbox music festival. knitting factory, $15 adv, $18 door.
1pm-?: williamsburg diy venue monster island throws a summer block party complete with a dozen bands, open studios, two art installations, a barbecue, djs,more. 128 river street, near nort 3rd, free.
6-10pm: pencil? handlebar? full beard? the fourth annual beard + moustache competition celebrates them all at coney island usa, $15.
8pm: it’s classic album cover band night at brooklyn bowl: cheap trick or treat does live at budokan (cheap trick), the major toms do live at leeds (the who) and believers do hot august night (neil diamond). $5.
3, 4pm: a chamber ensemble from the string orchestra of brooklyn commemorates 9/11 with two free concerts: one at 3pm of barber’s adagio of strings at st. ann’s church (brooklyn heights) and the other at 4pm at 85 south oxford space (fort greene) of schumann’s piano quintet, op. 44.
3-6pm: sample wine and snack on food pairings at brooklyn winery’s harvest 2011 preview party. free (rsvp).
thru 9/25 (various times): ‘amuse bouche: a ny clown theatre festival hors d’oeuvre’ continues at the brick theater. $15.