Hi, this is our work made for a school project, it's an easy way to move an egg with the help of a dummy.
Its rotation is actually based on another script made by Cuneyt Ozdas and the positioning is made by getting the lowest vertex on the object (egg) and adding it to the distance where a ray(previously made) collide.
I hope you understand how it works. Just take the scene example and run the script, it'll work wonders! :D (I attach a word document though, just in case :P).