Mary Arnold Toys is definitely doing something right. Since 1931, this Upper East Side shop has been the toy mecca for families. Behind its non-assuming store front, Mary Arnold is jammed full of choice toys, from a large selection of dolls to mini-figures to board games and even outdoor toys. Mary Arnold Toys 1010 Lexington Ave. New York, NY 212-744-8510 Mon.-Fri., 9 a.m.-6 p.m.; Sat. & Sun., 10 a.m.-5 p.m.