I told someone I would take pictures and post how I did this cake. Thankfully, it turned out better than I thought it would!
I baked 3 cakes using one pan and 2 bowls. Hmm, wonder which will take the least amount of time to bake? Okay, so it was more like 2 cakes and 1 cupcake.
This is after I've leveled the cakes. I didn't do the best job but our motto around here is "close enough for government work."
Then, of course, I glued the parts together with frosting...
...and covered the whole thing with a layer of frosting to seal in any crumbs. Then I put it in the fridge to harden.
At this point, I'm thinking, "Geez, maybe I should've gone with a volcano cake. It kind of looks like one and would probably have been a lot easier to decorate." (L'il Sis has a thing for lava.)
I didn't wait long enough for the first layer of frosting to set, but it still turned out okay. After covering the whole thing in green frosting and then "combing" it with a decorating tool to get the look of a grass skirt, I thought it looked more like a Muppet's wig.
Here's the almost-final product. The hair and arms are still up because the frosting is still soft. I'll try to do something with the hair and pose the arms tomorrow. I'm also planning on putting crushed graham crackers around the base to simulate sand with chocolate seashells scattered on top of the "sand."
Update: Here's the final product at the party...