The Sour Grapes Bunch are characters in The Banana Splits Adventure Hour.
About the Bunch[]
They are a group of girls who don't speak, and are all named Charley. As rivals of The Banana Splits, they frequently send one of their members to deliver a trick gift or impossible challenge.
Once, they challenged The Splits to send a member fight their toughest member. Snorky was elected, but he lost. The fight was never shown, nor was the toughest member, but it soon became obvious who won when a flattened Snorky reappeared afterward.
They once gave Fleegle a poncho so he would think they had reformed, but it had a target on the back so they shot him in the butt with an arrow, indicating it was only a prank and that they hadn't reformed.
In the one-shot, DC crossover comic, Suicide Squad/Banana Splits, The Sour Grapes Bunch are mute robots holding Colonel Flag hostage and The Banana Splits and Suicide Squad were out to rescue him from them.