This instance is from Wikipedia and will be reused under a CC BY-SA license. They are often sculpted into a variety of styles through this method, from time to time causing deep thumb-print like indentations on their own surfaces referred to as regmaglypts. From Wikipedia The ASL fingerspelling provided here https://sculpted-md-lakewood43942.acidblog.net/67411740/the-single-best-strategy-to-use-for-sculpted-md-lakewood