Author's work. Ready for 3D-print.Alone figurines:
Knight - https://www.cgtrader.com/3d-print-models/games-toys/board-games/chess-strong-figures-knight
Bishop - https://www.cgtrader.com/3d-print-models/games-toys/board-games/chess-strong-figures-bishop
Rook - https://www.cgtrader.com/3d-print-models/games-toys/board-games/chess-strong-figure-rook
Pawn - https://www.cgtrader.com/3d-print-models/miniatures/figurines/chess-strong-figure-pawn