Suzue parts?
 

I have a Suzue flip-flop hub on my fixie. One of the cones is pitted so I wanted to replace them, but my LBS says Suzue went out of business and they can't get the cones. Anyone know of a likely source? Or if they match some standard such that I could substitute cones for another hub?

I've also heard rumors that Suzue went out of business, although I'm not sure on it.
That said, your LBS also probably has a big box of assorted cones and can look through to find something which matches the curvature of the cone that you're replacing.

This may be more tricky if the cones have integrated dustcaps - I've got a Suzue flip-flop hub with loose bearings, that has the dustcaps fixed to the cones, not pressed into the hub shell. Here's a picture of that hub.

Here's a picture of a trashed cone (from a completely different hub - it's just impressively pitted).

I've got Shimano hubs that also have the dust caps as part of the cone but the caps are a separate piece only pressed onto the cone. They are not machined as a single piece. I've been able to press the two apart and reuse the cap on a new cone. Maybe your hubs can be serviced the same way.