Frog imitation flies

If you have never heard of Emergefishing.com then maybe you should check out their website for some of the most realistic frog and Salamander fly imitation flies available.
they quote "The Deep Swimming Frog is the first of its kind, and like the already popular Mad Mud Dog is a fly that will fish deep in and around cover to pull out those big lunker bucket mouth. The Deep Swimming Frog is the only frog pattern intended to be fished below the surface instead of on it"
Scheil’s Deep swimming frog fly
Mad Mud dog Salamander flies