Gah, I'm so lazy and tired today, I just can't bring myself to do anything. But I must, and I will. Seriously.
Now, I know I have said this before, but
fernwithy is a really brilliant HP fanfic writer, and even if you don't want to read the wonderful but long Shifts and Shades or her Teddy Lupin fics, which are brilliant, too - here are two very short ficlets which I both found hilarious. Maybe they'll leave you wanting more ;-)
Draco and Astoria hear about Scorpius' sorting Ted and Andromeda during the 70ies They're in the comments, you might have to scroll down a bit.
Also,
sophiaiswisdom, if you want to read a truly depressing but brilliant AU Strong Poison fic, tell me and I'll provide the link.