The one time I did it in highschool I suspended the egg in a small cloth bag within a box. No padding just the secure cloth bag attached to the inside corners o

The one time I did it in highschool I suspended the egg in a small cloth bag within a box. No padding just the secure cloth bag attached to the inside corners of the box with taut twine. Egg survived the 3 story drop easily, even was fine when we kicked it around afterwards.