I scanned my Gothic chessmen by Ganine in salon size. These were seen in a few star trek episodes on the famous tridimensional chess board. These should be prinatble with any fdm printer with a minimum of supports. You need for each color 8 pawns, two rooks, two bishops, two knights, one king and one queen. Remix as you like. There is probably plenty of room in these to add a steel nut for weight. You might also consider resizing for use with this board
https://www.printables.com/model/73643-3d-chess-star-trek-tos
The author marked this model as their own original creation.