ka ching cash register sound

Has anybody figured out a way to get the ka ching/ cash register sound back? I know it was discussed online and here too a while back but I can't find any new info. Is there a way to use my downloaded-from-elsewhere ka ching sound somehow?

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I thought it was me that did something to my phone. It sometimes makes that sound but only when I swipe my phone to open it. Otherwise silent now. Will follow this thread to see if somebody comes up with the answer.