I also wanted to show off this EL wire skeleton costume I made for my son, last year.The EL wire is hot-glued to craft foam cut into the shape of bones. The bones are attached to his clothes with velcro, so they’re adjustable and removable. This holds the bone shape and makes a surface to illuminate. The mask is baling wire with EL wire attached.
One of the big things I learned from this project is something you’ve said many times. Hot glue is not the ideal adhesive for wearables. After a couple hours of trick-or-treating, the glue was coming loose. It would not have lasted a full day or multiple wearings. I’ll touch it up with E6000, next time it gets worn.