If anyone wants to remix this thing to close with a lip instead of pins please let me know and I'll post the eggs before I added the pins.
Printed using PLA at 2.0 mm without supports and scaled to to over 1000%. Print the base standing straight up and print the top with the wide end on the platform. I used Simplify3D to make 1 process with 50% infill for 10mm on the base of the bottom so it has some more weight and less likely to tip. The rest printed with 20% infill.
Printer Brand:
FlashForge
Printer:
Finder
Rafts:
No
Supports:
No
Resolution:
2.0 mm
Infill:
20