This example is from Wikipedia and may be reused under a CC BY-SA license. They are often sculpted into a variety of styles through this method, often causing deep thumb-print like indentations on their own surfaces referred to as regmaglypts. From Wikipedia This example is from Wikipedia and should be https://archerxinqs.blazingblog.com/36356286/the-definitive-guide-to-sculpted-md-lakewood