B. Toys Wooden Shape Sorter - Wonder Cube : Target
Amazon.com: Melissa & Doug Geometric Stacker - Wooden Educational Toy - Shape Sorter And Stacking Toy, Stacking Tower Toy For Babies, Toddlers And Kids Ages 2+ : Toys & Games
Melissa & Doug - Shape Sequence Wooden Sorting Set and Educational Toy – Olde Church Emporium