I found a few places online that list the 12-Grape Plate as being a NA and EU holiday item and I was curious if this is correct. If it is what NA holiday gives it to you?
I was successful getting it on New Year's Eve (Countdown) by setting my language to Spanish- it also helps that I can read Spanish, since Isabelle will be speaking it when she gives it to you.
Remember, NA doesn't strictly mean the United States. It is a Spanish item that can be easily obtained by switching your 3DS language to Spanish. Be careful, though. You can only get one item per player, so if you already got the sparkling cider, you can't get any other items.