I was kind of hoping the thread was about from Gotham City Imposters when I looked in but, excuse the pun, props to you anyway Pipboy.
The filler is a good idea, I hadn't considered using it for that purpose before...
The detail in this is eye opening (and eye watering!) to see how much effort goes into putting this costume together.
I'm actually kind of glad I'd never fit into it lest I be tempted by a similar undertaking..!