The main idea of this design is not to reduce a fall speed, it's still high enough, but in distribution of the load on the egg in a certain direction when it hits a surface. The main task of the blades - is to ensure strict vertical falling and provide impact on the ground in the desired point of the container - along vertical axis of the egg. With radial load distribution on the egg-shell it can withstand tens of kilograms!
Drop-test #1: https://youtu.be/S5v99NG2HS0
Drop-test #2: https://youtu.be/uzMLbDz-Gms
Main parts: ABS
Resolution: 0.20 layer, 0.4 nozzle, 0.33 width, 3 perimeters, 4 bot. and top layers
Infill: 25% (90-100% for parts #12 and #6)
Rafts and brim - some parts with brim is arr_*.stl.
Flex parts I printed with a flex filament.