The Creator Store Items (Models, Decals, Audio or Plugins) can all be created for Public Domain which means copying is allowed. However, accessories, clothes, hats, and gear cannot be made Public Domain.
Publishing assets to the Creator Store is the only way to make your assets publicly available to all users to use within their own experiences in Studio. Check out the Publishing assets article for more information.
Note: For detailed information about sharing content, please review the Roblox Terms of Use.
Additional Help