mechanical wooden puzzle

Melissa & Doug Animals Jumbo Knob Wooden Puzzles Set - Fish and Pets 6pc: Educational Toys for Fine Motor Skills

Melissa & Doug Wooden Alphabet Sound Puzzle - Wooden Puzzle With Light-Activated Sound Effects - 26pc: Fine Motor Skills, Peg Puzzle

Melissa & Doug Wooden Lift & See Peg Puzzle Early Learning 2pk for Girls' and Boys' – Alphabet, Numbers

Melissa & Doug Wooden Jigsaw Puzzles in a Box - Pets, Vehicles

Magic Puzzle Company The Puzzled Patron Jigsaw Puzzle - 1000pc: Memory & Fine Motor Skills, Collage Theme