The green velvet curtain dress from "Went With the Wind."
Only appeared as a blooper years later, but still.. after the director told everyone time was short and not to goof around, Tim Conway proceeded to absolutely destroy a Mama's Family sketch by talking about a pair of Siamese elephants joined at their trunks, and the pathetic "norf" noise they had to make instead of trumpeting. After Burnett desperately tried to get the show back on track by asking Vicki Lawrence in character to continue what she was saying, Lawrence replied, also in character, "You sure that little asshole's through?" Wave goodbye to any hope of recovering the sketch after that.
