Let's start a quick list for reference.
Here's a gem from the 2008 Keep Yourself In God's Love book:
"....should the newlyweds identify to all the giver of each gift? Christians from Macedonia
and Achaia made contributions to brothers in Jerusalem, but there is no indication
that their names were publicized. ( Romans 15:26 ) Many Christians who give a
wedding present would want to remain anonymous rather than attract undue
attention to themselves. In this regard, review Jesus' counsel found at Matthew
6:1-4 . 16 Identifying the givers of gifts could lead to "stirring up competition" as to which is
the better or the more costly gift. Thus, wise Christian newlyweds will refrain from
publicly announcing the names of gift givers...."
There you have folks - giving a wedding present? Many Christians do it anonymously. Getting a wedding present where the giver has shamelessly told you who they are? Make sure you don't tell anyone else. This is in line with their "If in doubt keep it a secret" policy, which also applies to child abuse.
Thanks to StAnn for posting this a while back
Any more....?