The Blown Egg is most commonly used for the Egg Bag, Don Alan's Comedy Egg Can, and for filling with confetti.

There are a number of other effects that can give the Blown Egg center stage: Egg & Rice, Egg Nog, Eggs to Silks, and Eggs to Popcorn
Animation Effects: Mesmerized Egg, Wonderful Walking Egg, Obedient Egg, and Climbing Egg. 

Instructions for all of these tricks can be found in Donato Colucci's The Encyclopedia of Egg Magic.

A Blown Egg is a real egg which has its contents removed