Amazon.com: Logica Puzzles Art. Pyramid 9 pcs - 3D Wooden Brain Teaser in Fine Wood - Difficulty 3/6 Hard - Leonardo da Vinci Collection : Toys & Games
3 Piece Pyramid Wooden Brain Teaser Puzzle - Etsy
Two Piece Pyramid Puzzle - National Museum Of Mathematics
Pyramid Puzzle (8 Pieces) → MasterCubeStore
Amazon.com: Project Genius Pyramid and Hieroglyph Puzzle, Multi (TG019) Wooden Puzzle, Assembly Puzzle, Disassembly Puzzle, Metal Disentanglement, Brain Teaser, 3D Puzzle, Variety Pack, Puzzles for Adults : Toys & Games