Connected to a celebration? *considerable audience laughter*. I think I have to say No, though some might argue the point.
Relevant to archaeology? No.
Vegetable part edible? Yes. (And remember the whole thing is vegetable, not just part of it.)
Was it art? *more laughter* Not in the conventional sense, No.

After your good start I am surprised this is taking so long. As a hint, you could always explore the animal connection further.