I have been severely lax on getting my Halloween displays going this year, it's kinda sad really, and I promise I will have this year's crazy ideas out here soon but my lassitude is really your gain because it means I am on the lookout for cute and EASY ideas (um, even though I probably won't let myself do them because I HAVE IDEAS).
Idea No. 1: Cauldron filled with "goodies"
I found this idea via Pinterest from the blog Let It Shine, she has instructions here including weathering and aging the cauldron but for "easy" you could just buy a regular cauldron and still fill it with the same cheesecloth and drapey fabrics that would instantly add the age, especially if you had it lit from below at night. Then just fill it with halloween items as you see above: a sign, broomsticks, skulls, pumpkins, ravens, spiders, etc.
Idea No. 2: Feather Boa Wreath
You could go creepy and gorgeous (I like creepy for Halloween, obvs) like this one from The Art of Doing Stuff or
add pumpkins for something less creepy like this one from Simply This & That
Idea No. 3: Lettered candles
This idea from Better Homes and Gardens incorporates glass cylinder style candles that you can pick up cheaply at any dollar store covered either by a template you can download from their site (top picture) or tissue paper with stick on letters (bottom picture)
Idea No. 4: Stick a bird on it
I have a bunch of ravens for Halloween (I know y'all are surprised) and perch them throughout my house on chandeliers, curtain rods, bookcases and even the backs of chairs or tops of other displays. They definitely help to up the creep factor around Halloween.
Idea No. 5: Pumpkins and more pumpkins
Idea No. 6: Shop Martha
Martha Stewart has a whole line of crafty decorations available for purchase right here.
I have (and can easily find) a bunch more ideas, hit me up with any questions you have!
(Photos: Let It Shine, The Art of Doing Stuff, Simply This & That, Better Homes & Gardens, Martha Stewart.com, Country Living, Nest of Posies)