I saw these at the supermarket on a display next to the bananas and I just started laughing! Just eat the whole nanner for crying out loud!

http://www.asseenontvguys.com/nana-saver.aspx

And Moosmom, a plastic burger shaper is ideal for OCD types like me who have to have them all the same size (seriously- my mom has one and if I don't use it, the burgers turn out more like semi-flat meatballs)