Cover your work area with an oilcloth, newspaper or wax paper.
Add one part flour to two parts water. Mix it into a thick glue. Add more water or flour if necessary. Add a teaspoon of salt.
Blow up the balloon. Tie the end. Set it on a cup or bowl.
Tear newspaper into strips about 1 inch wide and 8 inches long. Dip the strips into the glue and spread evenly over the surface of the balloon. Leave a hole to remove the balloon. Set the balloon aside until the glue is dry.
Spread the paper-mache mixture over the balloon. Let it dry. Then, spread on one to two more layers. Pop the balloon and remove it through the hole.
Paint the Easter egg with acrylic paint. Or, spread some glue on the egg and attach pieces of tissue paper, crepe paper or torn up napkins.
Poke holes directly across from each other in the top of the egg. Thread a piece of yarn through the holes to hang up the Easter egg.
Purchase new or vintage Easter molds--the kind used to mold chocolate into Easter bunnies and other Easter figures--on eBay or from yard sales or thrift shops.
Add torn up strips of newspaper to boiling water until the paper falls apart. Add extra water as needed. Add a few tablespoons each of glue and salt.
Press a sheet of thin plastic wrap into the mold. Pour or press the mixture into the mold. Let the paper-mache dry thoroughly.
Lift the ends of the plastic wrap to remove the sculpture from the mold. Paint with acrylic paint.