So here's Renee's Darth Vader Tie fighter (Tie Advanced X1).
It's the same idea as Julia's X-wing costume. It has suspenders for around the neck to have the ship from. The cape is from my costume and the mask and chest box are from a hasbro toy from e-bay. The chest box has a lot sound effects - breathing sound and clips from the movies.
I don't have too many intermediate pictures of the Tie. It had to come together quickly because I was running out of time. I painted the strip section black then taped over it and the rattle-can sprayed the rest of it gray. The raised relief of the pilot window was also made free hand. I cut 8 trapezoids and then angled them up to a circle. I had to trim a bit here and there to get them to align.
The grey bars are foam tubing you'd use to insulate a door or window frame with, you by like 30' coiled up in a bag at Home Depot for like $4.
The last bit was to take gray pipe insulating foam and stick it to the leading edge. Originally I was going to make it go all the way around but I had a hard time getting it to stick without straightening out.