I've marked this design as a remix from Antonin Nosek Easter eggs collection. I didn't copy nor changed any of his designs, I've just used the idea of a 3D pattern intersected with an egg-shape.

I'v printed this egg in spiral vase mode, without brim, and off course without support, took about 1,5 hour (scaled it down to 86% to match those from Antonin Nosek).