I get really nervous too, and I always forget mentioning important points D: And it's always the points that make me sound like I know what I'm doing (seam finishes, painting techniques, etc). Combination of terror and the pre-con sleep deprivation, I guess.
I'd feel much more comfortable writing up a page of bullet-point construction notes + reference pictures/WIP photos and giving that to the judges, but I'm afraid that'd make it look like I didn't make my own costume -___-
Fast. Cheap. Accurate. Pick two.
Current Project: Abel Nightroad | Upcoming Cons: Otakon 2015 | Find me on Twitter, DeviantART, or Facebook