Eggs 🐣 & Rabbits🐰 referred to REBIRTH & FERTILITY in the ancient world.
Ancient Gods and Goddesses were actually often celebrated and worshipped in different parts of the old world after associating those Gods & Goddesses into each countries own mythical ideas and believes, hence the Goddess of FERTILITY were celebrated in the Persian empire under stories associating her to their Persian believes just like the Babylonians they associated Ostara to a story of their kings like Nimrod under the name Goddess Ishtar.
As for the Europeans Ostara was a Goddess of fertility according to their pagan believes she brought the spring as a new beginning and a rebirth after the death of plants and animals during the cold winter (coming from the dead sounds familiar with Resurrection of the man Jesus!).
But she was also celebrated by the ancient Egyptians long years before Jesus was born and her name in Ancient Egypt was Isis or other names: "Auset, Aset or Eset" and she was also the Goddess of fertility and the protector of children, and nowadays Egyptians still celebrate that day (coming of the spring) it's called in Arabic "شم النسيم" which means "Enjoyment of the Spring" in which Egyptians has a bad custom inherited from the celebrations of the ancient Egyptians which they eat on that day a salted rotten fish [Herring] with onions!!
but Also rabbits and colored eggs to refer to fertility and rebirth!
The Name Easter came by the Anglo Saxons from the Original Germanic name: OSTARA
as she was Originally a Germanic Pagan Goddess of Fertility!
Finally they had discovered back in 1958 more than 150 Romano-Germanic inscriptions which dated back to about the years 150-250 After Jesus which refer to the Pagan Goddess Ostara and the devotions of those Germanic Pagans to their Pagan Goddess Ôstara or as it's name in early English Ēostre.
Those inscription discovered is called: Matronae Austriahenae
Long years later the Christians under the Pagan Romans influence took that Pagan celebration and imported it into Christianity! Just like what they did with the Pagan celebration which they called Christmas which has no connection to Jesus as the Bible itself states Jesus was not born in the winter seasons!
Simple question: What's the connection between Rabbits, Eggs and Jesus? Nothing.