I saw the recipe in a magazine (I think Better Homes and Gardens?) and thought it looked simple to make yet festive.
I wish the photos were a little more artistic, but I was hurriedly making it right before the party, so things didn't get soggy, and just snapped shots as I was working.
I made a typical 7 Layer dip, with guacamole on the bottom, layered with sour cream, green onions, shredded lettuce, diced tomatoes & red peppers, shredded cheddar (2 layers) and black bean dip and more lettuce on top. I layered it in a rectangular dish, and added pretzels around the edges to look like a cemetery gate.
The icing on the dip, so to speak, was the spooky tree and tombstones, which I made out of a whole wheat tortilla.
I simply cut out a tree shape from a tortilla (they're flexible at this point). You could draw a tree first, but I just free-handed it.
Just before the party, insert the tree and tombstones into the dip. They get a bit soggy sitting in the dip as the party progresses, so you don't want to assemble it overnight or anything.