The partners at Scharf, Banks, Marmor LLC were ecstatic. They had a great year and wanted to celebrate with a charitable holiday party. They also wanted to do something creative. Then it hit them. Pin the Tail on the Donkey, meet Pin the Charity Ornament on the Holiday Tree. “We really feel strongly that when you’re doing well, you should also do some good,” said Stephanie A. Scharf. “That’s why we decided to have a holiday party with a twist. “Guests are going to choose a …