I haven’t used this in costume yet, but I think it might be a good nail polish. It’s Clair’s Mood Nail Polish- Daring/Innocent. It changes between a gray (when cold) and a light yellow (when warm). Some canon pics of trolls don’t show the nail color, so gray could work for cosplay and other…
Okay pick a color palette. I got this one all prepared ahead of time. I like it because it’s got a nice balance.
Every color is three out of six things. It’s cold or warm, and saturated or dull, and dark or light. Practice classifying colors in your head! Now everyone will want to talk to you at parties.