Carvings in ivory from back in the 17th century when that was fine. Some with rhinoceros horn. Georg Pfründt, maker (1603-1663). One piece by one of his followers.

Ceremonial vessel. 1750-1775.
Ceremonial vessel. 1750-1775. Made in Augsburg, Germany. Rhinoceros horn, ivory, emeralds, gold plated silver and enamel. Made by Georg Pfründt. Image © KHM-Museumsverband, Wissenschaftliche Anstalt öffentlichen Rechts. Fair use license. via https://www.khm.at/en/objectdb/detail/89696/?offset=6&lv=list
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Nef. 17th c. South German. Ivory. Also known as the “Rothschild Nef,” because it was in their collections for many years. Attributed to Georg Pfründt. Image source: Sotheby’s. Fair use license. via http://www.alaintruong.com/archives/2016/12/20/34711869.html
silver_and_silver-gilt_mounted_rhinoceros_horn_and_ivory_cup_ca__1676-1680_private_collection_copyright_congo_blue-724x1024-1
Cup. ca. 1675. Made in Augsburg, Germany. Rhinoceros horn, ivory, silver-gilt, and silver. Johann Mathias Scheppich, maker (1652-1705), Scheppich having been a follower of Georg Pfründt. Image © 2013 – 2018 Museumkijker.nl. Fair use license. via https://www.museumkijker.nl/indomania-brussel-rembrandt-beatles-iedereen-vrij/

Note: I am comfortable using these in my blog post because they were carved 400 years ago. They could be narwhal, elephant, or walrus ivory. It does not specify.

Artwork in ivory by Nuremberg turner Lorenz Zick (1594-1666). All illegal now of course. I think it is all right to do a post as these are all in highly regarded museums not random links. I hope you agree. All 17th century ivory.

Hollow spheres (detail). ca. 1650.
Hollow spheres (detail). ca. 1650. Photograph taken at an Exhibit in the Bode-Museum, Berlin. Cc0 Licence 1.0. In the public domain in the United States because the artist died over 70 years ago. via https://commons.wikimedia.org/wiki/File:Ivory_works_-_hollow_spheres_by_Lorenz_Zick,_c._1650,_covered_cups_by_unknown_German_artist(s),_c._1620,_ivory_-_Bode-Museum_-_DSC03386.JPG
Standing cup. 17th c.
Standing cup. 17th c. Possibly by the workshop of Lorenz Zick. Collection of the Metropolitan Museum of Art, New York. In the public domain. via https://www.metmuseum.org/art/collection/search/191622
Contrefaitkugel. 17th c.
Contrefaitkugel. 17th c. Collection of the Kunsthistorisches Museum, Vienna. Image © Europeana Collections. In the public domain in the United States because the artist died over 70 years ago. via https://www.europeana.eu/portal/en/record/15502/KK_4503.html