How to make an alien for a short film?
I'm making a short film, currently in pre-production. It's called The Survivors, just for the record. Anyways, it's about an alien invasion of sorts, and I need to figure out how to have an alien for the scenes. Problem is, I have a small budget, and two, I have multiple aliens called for in a scene, and I only have one actor for the aliens. I really have no mindset for what the aliens should look like, so I'm open to any suggestions. I just don't want to go down the cliche little green men approach. But whether they just look like aliens, or are wearing some sort of armour, I'm open to anything, really. What's something I can do on a small budget (say no more than $100 for the alien, and that's even pushing it) to create what looks like an alien?