The Brooklyn Indie Market’s first Steampunk Salon Saloon, a two-day celebration of drinking, techno music, and Victorian fashion, takes over Dumbo this weekend (hence all the corsets and top hats). Even the waxed-mustache averse might enjoy the Tsirkus Fotografika booth, where photographer R.A. Friedman will be shooting moody black-and-whites of attendees on vintage peel- apart film ($15 for a solo or group portrait; 3 to 9 p.m., September 25 and 26, at the Water Street Restaurant & Lounge, 66 Water St., nr. Main St., Dumbo; 718-625-9352).