Butterfly Ear!

Dumbo Ears: " Dumbo Creased Ears (also known as butterfly or cauliflower ears). The ears seem to be folded back at the top with a definite crease in the middle. You can see viewed from several angles above. It’s not uncommon for a rat to only have one creased ear and the other to be one of the above types. This is seen as a fault. It doesn’t seem to be difficult to breed this ear type out by crossing the rat to dumbo lines with good ears."

Theres a butterfly on the side of your head...