An emu egg, sprinkled with luminescent glitter (which in fact was wasted on this occasion) resting in a glass flower type candle holder. Sitting atop my kitchen table, turned lengthwise, on two sheets of black bristol board. Lighting was a remote flash fired probably 4-5x off of an aluminum pie plate, handheld and moved around the set as needed.
Snaffles! We meet again. That last one of yours was a winner, for sure. This one? Well, we all lay an egg once in a while. (Joking!Joking!) Still, I think you and I both suffered from a similar fate in the Egg Challenge.
It may be that both of us suffered from the same malady: "Record Shot."
Yep, I too, made a straight-on image of a good subject. People pronounced it boring. In your case, with an emu egg (big bruisers, aren't they!) it would be good to shoot it high, low and at strange angles, just to see what would happen. Probably something interesting would show up. Then, while your lighting idea was excellent, ERM, that purple surface competes a bit with the texture of the egg as does the left-over glitter on that surface. I think you get the idea that I'm suggesting different approaches to this perfectly fine subject matter.
You are capable of it, and it would be fun to see the result. Keep that emu egg. No doubt there will be another Egg Challenge in our future!