Ever since I was introduced to the Elephant and Piggie series I have been obsessed with Mo Willems (known for writing for Sesame Street and Knuffle Bunny). My students adore these books and I love them too! I recently had the privilege of listening to him speak at Teachers College and my obsession with him has only increased. I bought these Porcelaine 150 markers and wanted to test them out. I strongly suggest that if you do buy these markers (and use them), make sure to follow the directions! [i.e., make sure that you let the markers dry for a full 24 hours before baking] I learned this the hard way. I may have to use them to make some holiday gifts!