Alien Vs Predator: Aliens as used in the film

leading from 
Alien vs Predator

Spores

1) Miniature Alien Egg

2) Alien Static Egg Miniature 

Facehuggers

1)  Special Effects Facehugger

Chestbursters

1)  Alien chestburster puppet

Alien Warriors

1) Alien warrior rear appendage

2) Alien Warrior Insert Attack Head

3) Alien Mech Head

4) Full Sized Grid Alien Suit

 

5) Partial Grid Alien head 

Alien Queen 

1)  Alien Queen 1/3 scale Crown

2) Alien Queen Full-size Crown Casting