"These people were there for me for my wedding, and I would feel terrible saying no, because they were there for me, " Winfeld said.

CNN: Is obligation gobbling up your vacation?

"When people get a little carried away, they forget how all their guests may feel, " says Ms. Post, referring to wedding registries that might include such things as farm animals, honey bees and even manure.

WSJ: For Brides and Grooms Who Have Everything, Something to Ease the Conscience

The duchess said she spoke on the telephone with Prince Andrew and her daughters throughout the morning of the wedding - 29 April - and that they made her feel "very part of the day".

BBC: Duchess of York tells Oprah wedding snub was difficult

"Young people want to conserve sharks but their families feel that shark's fin must be served at important events such as wedding banquets, " says the executive director, Simon Wong.

BBC: Hong Kong shark fin trade declines