In the "I Love Lucy" episode where the Ricardos and Mertzes redecorate the Mertzes, there is the where Fred brought in a fan which blew feathers that Lucy and Ethel had just removed from an old chair all around Fred and Ethel's "living room".
In the next scene, Lucy and Ethel are sitting on Lucy's new sofa in Lucy's "apartment", and Ethel is asking Lucy what had happened to the mink stole that Ricky was originally planning to buy Lucy. When the camera is focused on both Lucy and Ethel, you can see at least two feathers still floating in the air.