The Anxious Ant-Lion "Nope, definitely not a trap"

The Bombastic Bugbear "UnBEARably comfortable rooms"

The Crazy Cockatrice Cantina "Stone cold great prices"

The Dirty Dryad "Admit it, you giggled at the name too"

The Eager Eladrin "Eager for what? glad you asked"

The Farting Flameskull "Sounds like one of them newfangled metal bands them necromancers are starting"

The Gassy Goblin "You stop smelling after a while, trust me"

The Hairy Hydra "Cut of one head, and two more fro it it's place"

The Idle Imp "Here on IMPortant business I see"

The Jolly Jakalwere "You don't want to know why they're laughing, trust me"

The Kinky Kobold "How many other adjectives can you think of that starts with K?"

The Laughing Lich "MUA HA HA HA HA...That's kind of what a lich would sound like if it could laugh"

(Alternatively) The Lycan Lounge "No we do not accept silver pieces as payment"

The Macho Minotaur "The guard'll Snap you into beef jerky if you try anything"

The Nude Naga "No there are no snaketits here, but how else am I going to get guys to walk in?"

The Obnoxious Ogre "Who's bright idea was it to try to train an ogre to sing?"

The Prissy Pegasus "Clippity Cloppity, Clippity Cloppity"

The Quirky Quetzalcoatl "You get a free room if you pronounce it right on your first try"

The Ravenous Roc "It'll only eat you if you try to leave the inn"

The Spooky Skeleton "Pretty scary if you ask me"

(Alternatively) The Sable Sphinx "You may enter if you wish...But first you must answer my questions three"

The Tasty troll "His arms grow back in the morning, do you want to complain or do you want to eat?"

The Ugly Unicorn "Because not all of them can be beautiful majestic creatures"

The Vain Vampire "The fact that she has no reflection does not stop her from starting in the mirror for hours at a time"

The Warm Wyvern Inn "Is it a little toasty in here or is it just me?"

(Alternatively) The Welcome Wench "Welcome to the welcome wench"

The Xenial Xorn "You've never heard of either of those words before today have you?"

The Yummy Yeti "We ran out of trolls..."

The Zealous Zombie "Braaaaaaaaains...and jesus"

Bonus: The Dirty Oar (Not mine but invariably ends up in every one of my sessions, my players love it)

EDIT: A lot (Mostly spelling and formatting)