Working on this year's fossil Christmas tree which will partially not consist of fossils. I am using some specimens I collected while at Folly Beach near Charleston South Carolina USA in August 2017. The images in this post are of Common American Auger gastropod shells aka Atlantic Auger (Terebra dislocata Thomas Say, he originally named it in 1822 Cerithium dislocatum).
Thanks to this web site for identification: https://www.mitchellspublications.com/guides/shells/articles/pictorial/