One of the odder ones is Charlie the Hamster Sings the Ten Commandments. It's kind of excruciating and long, but if you ever wanted to know what a singing hamster has to say about adultery I guess this mp3 is for you.
Before that Ken posted a little ode to the glass harmonica which included a link to a recording of a street musician playing Stairway to Heaven on one.
Finally, a non-audio thing that might have some actual merit: I told
cgoldfish a story about Jimmy Stewart at lunch today, so I thought I would link to the story as I posted it last January in case anyone who's started reading my livejournal since then wants to check it out.