*Don't wear your space helmet into space.
**This is a helmet for human space travel. Which is to say that it is neither an alien helmet nor a robot garment of any sort.
***It's trash until you make a space helmet with it, at which point it becomes a component. Space travel is confusing, I know.
Step 1: Supplies
A large box or popcorn tin. (Must be big enough to fit your head)
Metallic silver spray paint.
Step 2: Assemble
Don't forget to cut eye holes. It is a helmet for humans in space, they are not telepathic, they need to see.
The placement of junk could be aesthetic, but you might also consider futuristic utility.
We chose a prophylactic for the third eye, for instance.
Step 3: Paint
This idea is borrowed from the band The Phenomenauts. Their van looks like this.