Maybe for next year we could have halloween siege weapons for wvw. They don’t function differently but just have a cosmetic skin and maybe the catapults launch pumpkins, ballistas shoot bloody stakes, candy corn rams etc.
The key is that these are forged recipes using up the insane excess stock of halloween fangs, nuggets and skulls. It would give these things value again.
Also if it isn’t too hard to implement you could do Wintersday ones too.