Resource Tweezer for Mac

From PK Industries:

Resource Tweezer from PK Industries lets you extract any type of resource from a file or application. It places the extracted resources (in the form of ResEdit files) in folders, each containing all extracted resources of that type. This utility is designed with programmers in mind, especially REALbasic programmers, Kaledioscope scheme makers and MacAMP skin developers, but it may also be helpful for individuals who wish to extract sounds or pictures for personal use.