Erin:

I see you have no response so i post these two recipes which i got from the Net. Hope these can help you somehow...

ps: i have seen many more similar recipes so you may want to do a bit of search if these aren't what you are looking for... ^_^

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Halloween Spider Cake

1 box white cake mix
1 pkg. green jello
blue food coloring
chocolate frosting
4 back licorice strips
2 big green gumballs
6 little gumballs
Prepare cake and gelatin according to package directions. Except use the 9" round cake pans for the cake. Cut a smaller circle out of one cake using it as the head. Fill the hole left over with the gelatin. Place the other layer on top and trip to shape. To prepare frosting, in a mixing bowl, add blue food coloring to the chocolate frosting until black in color. Frost cake black. Then use the black licorice as leggs and gumballs as eyes. NOTE: When cake is cut into, it spurts green goop.
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Pistachio Pudding Dessert

Ingredients (10 servings)
3 pk Ladyfingers
7 oz (2 bx) Pistachio Ins Pudding
3 c Milk
1 pk Cool Whip (lg)
4 ea Heath candy bars

Instructions
Mix 2 (3-1/2 oz) boxes of instant pistachio pudding mix according to package directions using 3 cups of milk. Place half the ladyfingers in the bottom of a 9" X 13" glass dish. Add half the pudding and half the Cool Whip. Repeat layers. Crumble 3-4 Heath bars over top. Refrigerate. Mrs. James Hopkins