The egg, I'm using an Emu egg, is thicker and stronger than you think. An Ostrich egg is probably stronger (think of what's inside and has to be contained). I've used a VERY fine tooth saw or a Dremel Cutting tool on LOW speed. The egg MUST be Secured to avoid uneven cut.
I'm making Faberge Egg replicas for Christmas presents this year using EMU Eggs.

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