What are some fun little easter eggs you’ve stumbled into? Something that surprised you.
When I saw one of my beast’s evolutions as “Hat” on the Evolution’s End amulet tooltip, I thought it was a typo. It was not. 
I’m still finding hidden rooms, but so far they don’t seem to have much in them outside of a pretty scenic set piece.
i have only found 1 “hidden” room, i belive, cant remember where it is, also that place in the barren aqueduct, where the void may have started
If I’m not mistaken there are like 7 or 8 hidden rooms (maybe a few more?) peppered around Eterra and various ages but it’s been a long time since I rummaged around in them and some of the updates may have lost them.
There used to be a map somewhere that showed them but I don’t appear to have that link anymore.
Have you ever run Crows or Wolves with your Primialists? Some of the names that come to life are hilarious.
You think those are hilarious, check out the crabs you get from Carcinization: Crab E, Harton, Crab F, Patty, Pink Crab, etc. 
Yeah, those are great. Especially Patty. I will sometimes get really fixated and take it on and off until I get Patty.
I will add though, on a more serious note, probably the “best” easter egg in LE is the Shtrak monument.