http://www.lirr.org/lirr/getaways/Manhattan/AmericanGirlPlace.htm

It includes an off peak ticket r/t AND a portrait package at AG. Now the portrait package alone is around $22 from what I read on the AG site. So it's a great deal if you plan on going there via train.

Come spend a day your favorite girl will never forget - at American Girl Place New York. Situated in the heart of the Big Apple's most prestigious shopping, cultural, and business neighborhood, American Girl Place New York is much more than a store. Let one of the stylists treat your girl's American Girl doll to a new do!

After, have the girls get their picture taken at the photo studio (1 - 5x7 and 4 - wallets included in package price).

Discount Package Includes: Up to 21% Savings

LIRR Off-Peak Round-Trip rail fare
Free Photo Studio Portrait: (1) 5x7; (4) Wallets
Hours: please check the American Girl Place website for store hours.

Adults $22 Zone 1-12
Adults $34 Zone 14
Children (5-11) $1.50