What would be a good bait to cast down the bank of a pond when the bass are sitting on the bank?

Nothing!

hooks hurt fish.  :'(

a buzzbait works well in this situation, or a rattle trap.

A soft stickbait like a Tiki Stick rigged weedless and weightless.

Slug-Go, Ika, Bomber Square A

So a senko would be probly be the best?

... a weedless worm or a snag proof (weedless) frog.

Hey basskid,

Whose fish are you holdin' in your avatar?

thats mine i caught her at toho on a buzzbait

What did it weigh?     Details please... ;D

Small buzzbait or 1/8 oz. spinnerbait

1 foot or less crankbait

Soft jerkbait, soft stickbait

These are the exact baits I use in the pond across the street for said situations.

Brad

Zoom Superfluke or Rebel Pop-R. also a Zoom Trick worm rigged weightless works great. you can also try swimming a jig