Stir 2 packages unflavored gelatin with 2 tablespoons cornstarch and dissolve in 1/4 cup or so of warm water. Add this mixture to 3 cups warm buttermilk. Stir in a tablespoon or two of raspberry or strawberry jam, a little lemon zest, a teaspoon of vanilla, and a half cup sugar. Whisk to a smooth consistency; it should thicken slightly. Cool and refrigerate. When semi-firm, spoon into a lightly oiled bunny mold and refrigerate for at least three hours. Garnish with chopped lime jello.