Do they still make littmus lozenge's?

Littmus Lozenges are a fictional candy from the novel "The Last Book in the Universe" by Rodman Philbrick. As such, they do not actually exist in real life. However, the concept of Littmus Lozenges serves as a poignant symbol in the story, representing nostalgia and the bittersweet nature of memories. If you're looking for similar candies, there are many nostalgic sweets available in stores today.