DD and I made a dragon Halloween costume a few years back. It was not nearly as nice as the Chasing Fireflies one but we were happy with it. We used a few sites for inspiration but I think in the end we winged it. I don't sew, so we cut out 2 colors of felt and hot-glued them together (or maybe it was Stitch-Witchery?).
Anyway, here are my inspiration links:
Etsy dragon wings (no longer available) that we used as inspo: https://www.etsy.com/listing/2368929...campaign=Share
Etsy dragon mask we used as inspo: https://www.etsy.com/listing/2448783...?ref=related-1
Etsy dragon wings (looks like still available):https://www.etsy.com/listing/2061193...campaign=Share
No-sew dragon wings and baseball cap "mask": https://brendid.com/how-to-train-you...-dragon-wings/
Sewn dragon wings (using wire from wire hangers for shape): https://feelincrafty.wordpress.com/2...ings-tutorial/
Hope that helps!
Jen, mom to "Little Miss Tiny" 4/07