This is more or less my second go at being a fanfic author (or whatever you'd like to call it.) I've posted a few of my older stories here, the ones I'm not too embarrassed to admit to (or could actually unearth from somewhere). Some of them have been posted wherever people posted things back in those days, possibly under slightly different names.
And then there's my podfic, which should hopefully all be found here.
If you want to create any kind of fanwork (podfic, translations, art, remixes, or anything at all you can think of) based on anything I've made there's absolutely no need to ask permission. Go ahead and do whatever you want. I would be happy to get a link to the result, so I can be very excited about it, but if you prefer not to tell me about what you've made then that's completely okay too. (I can't speak for anyone else, so if there are collaborations, you'll have to check with others as appropriate.)