Well in my actual opinion I think that may be hard because the inside of a egg taste good when u fry it or bake it, but the shell is just way too fragile to close it with, an egg is a shell holding the storage inside of it, so most likely u cant honestly protect it because concrete floor will definitely break it since its pure hardness is stronger, (has more mass than the shell) so technically u cant protect it at all, one way that I think u can do it is if u put it inside soft cuddly pillow or even this wool cloth, from sheep ball and place it in there, also put feathers or wool around it while its in the ball, and drop it and it shouldn't crack.
