If you're looking for a quick and easy craft to do before Halloween night, this idea, from Martha, is a great one. I picked up a grapevine wreath at Michael's for $3.99 - I couldn't find one as "twiggy" as the one shown on Martha, but this one worked out fine.
Place your wreath in a well-ventilated area (preferably outside!) on top of some newspaper and spray paint one side with matte black spray paint. Once the first side is dry, flip the wreath over and spray paint the second side. You may need to use garden shears or heavy duty utility scissors to cut some of the twigs and pull them out a bit.
Once the wreath is painted and dry, push squishy eyeballs onto the ends of the twigs, completely puncturing the eyeball through both sides so that they will stay on. (I found the small eyeballs at a local shop for $0.25 each and the larger ones were 2 for $1.00 at the dollar shop at Target.) We hung ours on some spiderweb ribbon on our front door. It looks really gross and spooky - perfect! Thanks again Martha!