RocketMan wrote:
No no,

I am certain that something 'bad' fell in and I want to get it out.

If it went IN through that hole, it can come back OUT. Make really,
really sure you have the power off. (Remember that Steven King novel? I
think it was Firestarter.....) Then reach in and feel around. You'll
find it.

it might be stuck / jammed, in which case you can rotate the inner
portion of the disposer using the hex wrench, and then try again to feel
the object.

The 'rubber thing' stays with the sink after you remove the whole
disposer from underneath. It won't come off from above.