I found them
There's more but there were major

Death Screens easter eggs:

Lefty-
Wait
WHY IS THE PUPPET INSIDE OF HIM?!

Scrap Baby

Springtrap/Possible Micheal or William Afton?

MOLTEN FREDDY IS F***ING ENNARD FROM SISTER LOCATION!!

Blueprints:

Molten Freddy/Ennard

What the crap is this?!

OOOHHHH SNAP!! OH SNIZETTY SNAP!
(Markiplier: It's god d*** 20-20-20-20 mode.
Me: XD)
JK, it's the scooper

L.E.F.T.Y?! WHAT THE CRAP?!

These are all screenshots from FusionZGamer's Easter egg videos on YT