Okay then i will need to take a chance here and sorry if i spoil anything.
Anyway as I mentioned I manage to found out what that cucumber in the Christmas special is for I been looking at a YouTube user mastermax888 video he was talking about the new “sell feature” in Marie shop there are two items in that option and one of the items is that “cucumber” here a picture I took.
From what i can tell it not available “yet” but I think the cucumbers can be found all over the Christmas special mode starting from the mansion that where i took the first picture, i believe that item will be available when the new night 2 update will arrive but how much will the cucumbers be worth that is a question we have to wait for.
Again sorry if i spoiled anything I wanted to get this of my chest.