My Dual Purpose Halloween Costume, Boadicea Scary and Non-Scary

I will be dressing up for Halloween this year and I need two costumes--a non-scary one for helping at my daughter's school concert. I'm volunteering at our local "Haunted Museum." I'm not big on scary costumes. But a haunted event will draw kids to the museum and give them interactive experience with history outside ho-hum textbooks. Being a teacher, I want my costume to have educational value. My Dual Purpose Halloween Costume, Boadicea Scary and Non-Scary