This is primarily a remix of Martin's Crackable Surprise Dragon Egg. All credit to the original designer as the only thing I did was edit it to be hollow.
His original design was intended to be made using vase mode, and you add a toy inside the egg while it is printing.
With this modified design. You print it normally not in vase mode but you also overlay it ontop of another small model and print them both at the same time. This way you are printing a toy into the surprise egg. It is not as easy to crack open as the vase mode print but its not too difficult either.
I printed mine with a tri extrusion filament. A vase mode print looks great with tri extrusion. this does not. Use a solid color or variegated filament for the best look.
As an example, I have included a sample with FoxMckraut's Creality Rabbit inside of it.
Other than my example model, I have included a hollow high poly and a hollow low poly model. The low poly model loads and slices faster but it doesn't look at nice. I would only use the low poly if you are having problems with the high poly.
The author remixed this model.
