I already tried to look for the items, and no, they aren’t on the market board. They’re only accessible with the event items “Powdered Sugar”, not “Starlight Box”. And, again, I didn’t know back in 2017 that I had to give the items to an NPC. If I could trade them for Powdered Sugar, then that would be nice. But I don’t want to give the boxes up if there’s a possibility for them to be traded.