You could do the BOO letters in Black, Orange, and Green. You could do something similar with FALL. Front Door Decorations for Halloween. Could do FALL instead in brown with orange ribbon so it could stay up for more than just Halloween
DIY: Head in a jar prank (or fun Halloween party idea)
Looking for a super cheap way to decorate your yard for Halloween? Try this simple spooky decor idea.
Spider Egg Sac: This globe-shaped incubator is teeming with eight-legged babies. Make several sacs and suspend them at various heights.
Tracking Ghost Door Decor (super Easy): 3 Steps (with Pictures)