Not sure how many Harry Potter readers there are on TFW (though I'm willing to bet there are a few). Today Pottermore launched its Patronus discovery test (like their sorting hat and wand tests before it). It think what's fascinating about it is how many outcomes there are. I've looked at the math behind the sorting hat quizzes, which basically award a certain number of points to each house based in your answers and then tallies up the totals. But so far Mugglenet has accrued 133 unique Patronus animals, based apparently on how you answer questions, how long it takes you to answer them, and how many questions you get asked (which apparently can be altered by some means; I got about seven). Discover your Patronus - Pottermore What kind of stuff gave you gotten? Anything rare?