Assuming you're allowed to try and protect the egg with materials I wrapped the egg in some cloth. Then I put bubble wrap around that and put it all in a mailing package. And our school dropped it from 30ft high off a firetrucks ladder. There are infinite options to choose from though. The trick is making it so that the egg can't move around in the very middle and that the outside materials will absorb all of the shock. Also make sure to test from a ladder you have before doing the real thing.