They are great for almost any project. They'll fit in niches in altered books, and are small enough and light enough to be used in jewelry or even Christmas ornaments. They have so much character, and I just love their potential for symbolism!
In the past frozen charlotte dolls were often used to cool hot tea, or baked into breads, and larger ones were even designed to float on their backs in the bath. The history behind frozen charlottes is just amazing.