Here’s a link to a New York Times’ article about there being no big “hit” holiday toy this year. I think, if advertised correctly, bananas could be much, much bigger. My children both wanted Pillow Pets (which are just junky-ish stuffed animals with velcro tabs in the center) because they saw kids having SO MUCH FUN with them on TV.
I think, if my kids saw a bunch of tweens in commercials freaking out about how cool bananas were (“It changes color!” “You can peel it!” “Watch how I make it disappear!”), they would be begging for them.