I know what you mean; if you're a large size they think you need as much girdering as the Golden Gate Bridge, when actually all you want is a whisper of extra support. I'm an expert at this, from the consumer end.

If you truly mean cotton only -- as in no Lycra blended in for stretch -- then I probably can't help much. But on a recent trip to Costco, I found packets of two cotten camisoles with built-in shelf bras that provided ample support for my purposes. I'm stocky and short, XL (42-inchish), not quite "queen-size" but definitely, ahem, buxom. The camisoles do come in XL.

Athletic "crop-tops" with built-in shelf bras are another way to go, but they're a little too confining for my taste. And I don't even have surgical scars to worry about!

Pardon the anonymity, but I'd rather not announce my bust dimensions publicly.