Just did a bit more searching and found this site that seems to have a product, though I'm not sure if it is actively in production and available. Source: over 2 years ago

Jewelry (ring, necklace, bracelet, earring) seems perfect for physical authentication devices: it's easy to carry, always available, and hard to lose. In the middle ages nobles used signet rings to stamp official documents with their unique personal pattern. In modern times, you can stash a Yubikey in a bulky wristband or put it on a necklace chain, but these are not very stylish. There are a variety of "smart... Source: about 3 years ago

The cross platform desktop Gpodder podcast client would be the closest suggestion. Source: 8 months ago

Download free and open source Gpodder on your Desktop of choice (windows, mac, linux). Source: about 1 year ago

Download gPodder and click on Subscriptions → Add podcast via URL. Source: over 1 year ago

Semi-Related, gpodder is a open source podcast client that you can add RSS feeds of podcast (for example from PodBay or other podcast websites) and it will automatically download them for you. Source: over 1 year ago

If you have a feed of it, you could probably use gPodder. Source: over 1 year ago