I was inspired to make this Golden Egg model based on an old cartoon I watched a million times as a kid; The Magic Trolls and the Troll Warriors.
Modeled and sculpted in Blender
I made it roughly 60mm tall - which is in line with a larger chicken egg. You can of course scale it up or down to fit your needs!
If you're looking for the textured CG model, you can find it here: https://www.cgtrader.com/3d-models/household/other/golden-egg-cc810a99-5de3-4e00-b23e-a4ebae80f203