Thanks to a fellow Sunset Park parent for reminding me of options in addition to 311 when I see disturbing items (she suggests "be it trash, vomit, or a broken swing at the playground") in Sunset Park. I would also include plastic foolishness vendors inside the playground and my epic favorite: broken, mangled fencing around the park.
Here's the useful list:
Community Board 7:
Sara Gonzalez, District 38 Council member:
Marty Markowitz, Brooklyn B. President:
Local 72nd Precinct:
Julius Speigel, Brooklyn Parks Commissioner:
Geoffery Croft, NYC Parks Advocate: