This example is from Wikipedia and could be reused underneath a CC BY-SA license. They may be sculpted into a variety of designs for the duration of this method, from time to time leading to deep thumb-print like indentations on their own surfaces termed regmaglypts. From Wikipedia sculpted In English, https://sculptedmdlakewood01986.getblogs.net/68882397/facts-about-sculpted-md-lakewood-revealed