What about Scarecrows? Ravens
If you have access to some corn stalks they could be used on either side of your stage with your jack o lanterns around them. Add some small hay bales and pumpkins to the tables?
tree branches painted black in pots are cheap to make
About month ago I have just came back from my modeling contract from Chongqing China. It was really great there. Here you can see some pictures from my job:
Hope you like it :)
I also used old Karaoke machines, tape players and I found one of those 3" screen black and white tvs that just plays "snow" ( I don't really know what that's called, lol) you can easily use paint to cover logos or just make them look old
Any kind of clear tubing or cables will help tie it together. I used an old stretchy tube from off an old hair dryer, you could use any tube from old vacuum cleaner, and the clear tubes used for fountains.........................is that what you were asking about?