This is another in the egg series. Polymer clay and a blown out egg. This was a little more difficult as far as attaching things went, but there is a polymer glue you can use. Essentially it is polymer clay that is thinned down to a glue like thickness and will bake along with the rest of your clay when curing. As an alternative you could form the bits attached to the egg, bake separately and glue them back on after curing.
See –critters– for more on this series
Let me know if you have any questions.