Recipe: Just for fun - Volcano Cake recipe

Here is a recipe I came across on another BB. I haven't tried it but I thought it looked like fun! Hope some of you might enjoy it or add to your collection.
Volcano Cake Recipe:
6 (8") baked round cakes
Brown & Green Frosting
1 fresh egg with shell scrubbed clean
1 small juice glass or 1 1/2 inch cookie cutter
2-3 drops red food coloring
1 1/2 tsp. sugar
1/4 lb. dry ice
Aluminum Foil
1-2 oz. hot tap water
1)Make 6 (8") round cakes using your own mix or buy cakes.
2)Buy $2-$3 dollars worth of Dry Ice from an ice cream store the day you will need it. Keep the dry ice in freezer. Be sure to handle dry ice with gloves or tongs just to be safe. Also, try Yellow Pages of phone book under Dry Ice as another source for purchase.
3)Use juice glass or cookie cutter to cut out a hole in the center of the top 2 layers of cake. This hole will form a well in the center of cake and hide the special effect.
4)Construct volcano. Starting with 2nd layer from bottom, trim each layer successively smaller than the previous one (to shape your pyramid or mountain). Once again, last two layers on top are the ones with holes in them.
5) Frost the cake with chocolate frosting.
6) With small piece of aluminum foil, line the well in the center of the volcano.Use juice glass as mold for foil.
7) Frost cake with green frosting as highlights for vegetation.
8) When ready to serve, make lava.
9) LAVA: Separate the cleaned egg and discard the yolk. Put the egg white in a small mixing bowl with 1 1/2 tsp. sugar and 2-3 drops red food coloring. Beat until egg white starts to thicken. You don't want stiff peaks to form; just thick , foamy texture.
10) Now place 2-3 small chunks of dry ice into the foil lined well of the cake and pour in the red mixture. Nothing much will happen yet. Now fill your juice glass with hot tap water, and take the Volcano Cake & water to the table where guests are.
11) When ready, simply pour 1-2 oz. of hot water into the egg and dry ice mixture.....and your realistic Volcano Cake will erupt large quantities of orange, foamy "lava" and white "smoke" for several minutes while you serve your delighted guests pieces of genuine Erupting Volcano Cake!