If you want to make that kind of candy-wrapped invitation, it is no problem to wrap it together. Just remember to list the number of people when you write the invitation. Anyway, the delivery invitation is from the families of both men and women. As for the gift box, necklace is a better choice, whether before or after the wedding, but it is not recommended to give gifts to mother at the wedding, because both parents are present at this time. Will your sister's wife have a problem with that? Give it all or not.