3D puzzle, "Block cross", bamboo, IQ test - Fridolin
Project Genius - Bamboo Box of 6 Wood Puzzles
The Imprisoned Ball - Bamboo IQ Puzzle
Amazon.com: Project Genius Ecologicals Bamboo Sudoku, Eco Friendly Puzzles, Bamboo Puzzles, Includes Numbered pegs for Game Board and Sudoku Booklet with 30 Puzzles : Toys & Games