Inspired by episode #471 of the Upgrade Podcast (specifically the Snell Talk segment), this is a download proxy for MP3 files that shuffles the order of the chapters in the MP3 file. Submitting the URL of an MP3 file below will download a copy of that MP3 file with the chapters in a random order.
For convenience, I also implemented a Podcast RSS feed proxy that rewrites the RSS to download all enclosures (the linked MP3 files) via the proxy.