[ferretchucker]

Here are a few I came up with. The names are a bit crude but I think you'll get the jist of it.

Basilisk (Harry Potter and the Chamber of Secrets)
Hoth Yeti (The Empire Strikes Back)
Jabba's big alien (Return of the Jedi)
Troll (Fellowship of the Ring)
Bull-like Alien (Attack of the Clones)
Praying Mantis-like Alien (Attack of the Clones)
Licker (Resident Evil)
Primate Stage Alien (Evolution)
The Blob (The Blob)
Giant Maggot Trench Creature (King Kong)
Martian (Mars Attacks)
Clover (Cloverfield)
Giant Squid Creature (Fellowship of the Ring)
Creeper (Jeeper's Creepers)
Brundle-Fly (The Fly)
Part of The Thing (The Thing)
Evil Hat Rabbit (The Twilight Zone Movie)
Kraken (Dead Man's Chest)
Ring Wraith's Dragon (The Two Towers?)
Anaconda (Anaconda)
Giant Amoeba-like stage alien (Evolution)