I know it would be so much easier to get all the diys that way!! Especially with so many diys for just NovemberI'm wondering this as well! I've only found them in balloons so far. I was really hoping they would be like the "spooky" items and I'd be able to get them from my villagers, but it hasn't happened that way just yet.
i got the forrest wall diy from one of my villagers too but i haven’t gotten any mush diys from anywhere ( besides marketplace on here lol )Not sure about bottles tbh. However, my mother in law had somebody crafting the forest wall as a DIY. Not sure if shes mixing it up with any other diy but that's what she told mesorry if that's not a full on answer