I don't know if you guys have seen Blacki / BlackRevenge's signature, but the first time I saw it, I almost spit out my apple juice. xD Specifically, it's a news reporter GIF with a meme face standing in a windstorm, and suddenly a huge stop sign comes flying out of nowhere. (It was the changing expressions that made it so great, frankly.)
The funny ones are always great for cheering you up as you scroll through the forums, I'd say. c:
Stellaryx's siggy is also very adorable. Kittens~<3