You guys just reminded, as I was leaving the grocery store, I saw a sign that said "cotton candy grapes." I was so astounded I went over and took one and savored it slowly - it just tasted like a grape and not one of the real sweet ones. I think people seeing the name conjure up the taste of cotton candy before even eating some grapes.
They also had samples of something (no name) that looked like vanilla ice cream and some chocolate splashed on it. I noticed 2 things about it - it didn't melt no matter how long it sat in the cart and it sure didn't taste like ice cream. I detected a slight ricey taste. Ick, I didn't go back for more.