In the episode where the mom is designing a new dress for the model named Teddy, Teddy comes over to see the dress and when she first comes in you can clearly see that she has brown hair with big blonde highlights near her face. Then the twins go into the kitchen for a few minutes and then they come back into the room with Teddy and Teddy suddenly has all brown hair and her blonde highlights are completely gone, when they were there only minutes before! It is really funny to see!