I think I'm going to try it sometime this summer! If anyone else tries it, post how it turns out.
In the comments below the recipe, someone also mentioned cutting cupcake size pieces and make cupcakes with the recipe?? I'm thinking that might be easier - you wouldn't have any issues with getting the icing on the side of the cake???
I love it because IF Grace can eat some fruits in the future, this is a great idea. You could even use other melons. It would be smaller but hey it might work. I've made coconut whip-cream. It's awesome!