Just recently, the "rumour" that an actual Animaniacs tribute was being planned by That Guy with the Glasses AKA Nostalgia Critic. But when it actually went to broadcast on his website, we were dead wrong. A majority of the Animaniacs staff were interviewed via Skype and even had several unexpected guest stars.
Guests like Paul Rugg, Tom Ruegger, Sherri Stoner and many more.
The Animaniacs Tribute was split into a 3-part epic of a tribute and contains so much nostalgia, that you would be overjoyed by the awesomeness and funniness of it.
The link to the actual video(s) is here: http://thatguywiththeglasses.com/videolinks/thatguywiththeglasses/nostalgia-critic/27440-animaniacs-tribute