They became thick and hardened. Knowing that it did in fact work, I decided to use this as part of my Christmas craft. Each of the kids created a minifigure and wrote by it so it included their handwriting. After they were baked (or Hansel and Greteled as I told the kids), we used them as a charm on an ornament filled with a ribbon that was the height of each child. It's good to know that these work but here are a few lessons I learned if you want to try this.
That's Elementary Explains is a teacher with almost 2 decades of teaching experience and a technology degree who is still trying to figure out the new and unexplained.