The one featured on YLF in the finds section. I thought it was only for our own wardrobes, and since I did not have a lot up, I was not trying it. But I did just put a lot up, and then I also saw you can use it for the entirety of the public finds, as well as your personal "likes." All different effects and different uses. It is super fun.
My question is--this is a random generator--no? Or does it use any special matching algorithm? Because most of the time, it does seem to be on good track with making outfits.