After grueling hours of searching, I found the island! This is no ordinary island, its got mooshrums! :D Since mooshrums are the second most valuable mob in the game (first being golems) I am proud to open this to the public. I do have 2 more things to say.
1. Please do not destroy the island
2. I will give a person 2 diamonds to get 2 mooshrums to my land (mushroom_land) This also applys to villagers but I will pay 2 for each. Thanks!