This example is from Wikipedia and could be reused under a CC BY-SA license. They are often sculpted into several shapes in the course of this process, often resulting in deep thumb-print like indentations on their surfaces named regmaglypts. From Wikipedia The ASL fingerspelling delivered here is mostly useful for https://sculpted-md-lakewood28393.digitollblog.com/36209099/what-does-sculpted-md-lakewood-mean