Wedding giveaway gifts are the gifts being given away by the newly wed couple to all guests attending the wedding party to show their thanks for the guests' attendance.
- Is my above understanding of the subject correct?
- Is the above writing correct?
Neither have I heard of this term.
Definitely - wedding favors, or party favors.
I'm not a teacher, but I write for a living. Please don't ask me about 2nd conditionals, but I'm a safe bet for what reads well in (American) English.