• Scope out fall hats and have a cocktail at the opening of the new Hats by Selima shop in Henri Bendel. RSVP to Virginie@selimadesign.com. 712 Fifth Ave., at 56th St. (212-247-1100); 6–8.
• Stock up on accessories and support breast-cancer research at the Hog Pit’s jewelry trunk show, featuring discounted designs from Elizabeth Warner’s Maasai collection, as well as silver, gold, and gemstone pieces from Laura Mady. Part of the proceeds will go to the Breast Center at St. Vincent’s Comprehensive Cancer Center. The Hog Pit, 37 W. 26th St., nr. Sixth Ave. (212-604-0092); 12:30–8.
• Catbird is hosting an end-of-summer sale, offering select jewelry and accessories for 40 percent off. Items range from $30 bracelets to a $600 necklace, as well as one-of-a-kind samples, Ethiopian cotton scarves, letterpress cards, journals, and home accents. Through 9/15. 219 Bedford Ave., nr. N. 5th St. (718-599-3457); daily (noon–8).