Here's something to lift your con drop a bit.
"You just showered? Did you wash your crotch?" - Tripper
"It smells like burger in here. That is a glorious smell." -AMightyPenguin
"That's a lot of cocks." -Sugareey
"I cleaned my ass out for this?" -Anon
"Big ole wang!" - Tripperfunster
"I wish my asshole had a clitoris on it." - Tripper
"Look! Anti-monkey butt!" -DJ
"What am I supposed to wipe my butt with now?" -Sam
"The enemy of my enemy is still my enemy." -DJ
"But I'd fuck him." -Emma
"Bring back the Snack!" -DJ
"Snape walked in. He was wearing a leopard print thong." -Quote from a fic
"That's what this con is all about. I don't know you, but here, have a penis." -Alisanne
"Where do I put my cock?"
"Just over there on the wall of shame. I mean fame." -DJ
"Once I pooped corn and I thought of you." -Sam to Tripper
"Can you put my arm where his pen would be?" -Tripper
"So now it's not 'shag or die'; it's 'shag or the world dies'." -Ru
"So I pooped in the castle, all right?" -Sam
"Do I really want to get into sodomy with a ten year old?"-Veridari
"Sorry, I just had a Batman moment right now." -Chibitoaster
"YOLO: You only lube once!" -Anon
"Harry, I love you! I'm crying as I enter your asshole!" -Sam
"Don't knock [VJJ bedazzling] til you try it. Just put a little disco ball up there." -Tripp
"Would anyone mind if I ran around in just my underwear?" -Snape cosplayer
"It's Delta. I would just take it." -Roozetter
"Take your unsucked dick with you!" -Tripp
"Harry got his penis to activate." -quote from a fic
Chibitoaster: "How will Snape get pregnant if he doesn't bend over?"
Adreanna: "He can just stand up."
"I like to think fanfic exists in a world without bowel movements." -Stef
"Does he have a penis on his ass?" -Chibitoaster
"It's not good for my hoo-hoo." -Tripper (with accompanying swirly hand movement)
"Hot dogs! Get your hot dogs here!" -Dacro
"It's my copyright on that penis." -Tripper
"Show me the porn. Then give me your pickle." -Sam
"Dirty buttbaby people!" -Bicrim
"I will be dressed in a bunny costume, that's how you'll recognize me." -Chaeche on the phone
"Set your penis on 'stun'." -Dacro
"I use Facebook for Quidditch purposes." -Sugareey
"It's a eunuchorn!" -Tripp
"Nary a muffin in sight." -quote from a fic
"The best thing about fandom is the hate." -DJ
"HP fandom is still pretty erect." -Chibitoaster
"It's a unicorn Voldemort with assless chaps." -Anneke
Re: a typo in the program saying "Porn and Smuth". Tripper: "It's a new thing involving smut and scat, so you may want to think about that one."
"Banana hammock!" -everyone (this was the con safeward)
"Did Dumbledore touch this box?"
"Dumbledore never touched a box in his life." -Snape cosplayer
Feel free to add more in comments. :-)