I like word balloons. If you hung it by the top side it could pivot and have a question on one side with answer on the other. I am a scientist, my lab coat has multicolored stains acid holes. I have a suggestion for that one.
"I am a scientist, I see the possiblities for success in each failure. The stains and holes in my lab coat are proof of the progress toward the next great revelation right around the corner."
This reminds me of fun fortune cookies or cabbage patch dolls that come with character back stories. They are coming to life.
Thanks for the feedback. I'm not going to do word balloons off to the side simply because the idea is based on the shadow puppets: the puppets will also have the 'hole' in the head, and in that gap you can have word/pictogram props appearing in that hole. I did try using a word balloon for fitting in the 'hole' but I lost a lot of the space used to write the text on.
I'm not sure - can you read the text in the pics? It may help to click on the image so you can, but the massive sizes on my Flickr account should allow you to read it. The back of the tag has a quote by the astronomer the plushie is named after, specially picked to match the idea that each plushie is unique. (The whole blog post I'm quoting from is about how astronomers and scientists in general aren't just the white geeky guys you see on TV)
But yes, the point is that each one is a character

So glad that comes across!