Not necessarily as the main dessert, just something extra for the kids.
I tried Ina Garten's recipe for toasted coconut marshmallows (check the Food Network site for the recipe) and they were easy and really, really good (Much better than commercial marshmallows). I got to thinking that it would be fun to use that recipe to make a giant chocolate marshmallow bunny.
I think you could make her recipe, and just be sure that you spread it in a glass pan with plenty of powdered sugar and coconut on the bottom so that it didn't stick. Let it dry out enough to cut out a big circle for the face and ears. Cover with an easy chocolate ganache (melt chocolate chips in the microwave with a very small amount of cream or milk), then decorate with licorice whips, jelly beans, etc to make a bunny face.
Haven't tried this, but I think it would work.