Question about creating a puppet for Adobe Ch

Hi, I'm trying to create a puppet from an inanimate object. The top of the object would flash blue when it talked. It would not have a face or mouth. It would just flash one color whenever it would speak. I actually have drawn the image in Adobe Illustrator, but can someone tell me how to add a blue flash to it?

I imagine it would essentially be a puppet and I would import it into Ch to use with my other puppets. I'm sorry, but I am very very poor with Illustrator. I had my puppets created by a professional, but I feel like this object is so simple, there's some way I could probably do it myself. Any help would be greatly appreciated.