Maybe I don't understand what you are looking to do.
If it's just the Burns' Casino labels on the spots from the Stardust set, why not. There's nothing that says spots <-> inlays all of the time, especially if taking advantage of pre-set spot patterns for convenience/cost reasons. Do what makes you happy (within legally appropriate circles). They will be the chips you use in your game.
If you are mixing some Stardust labels with some Burns' labels for a "mixed" set, again, it's your set for your game, but in that case I'd recommend against it, simply because the two inlay designs (theme, era, etc.) don't mix well together.