Amazon.com: 3 Inch Wooden Cubes, 6-Pack Unfinished Wood Blocks for Wood Crafts, Small Wooden Cubes, Wood Square Blocks, Great for Baby Showers, Puzzle Making, Crafts, and DIY Projects
Amazon.com: 5" Large Wood Cubes, Pack of 1 Square Wood Block for DIY, Wooden Blocks for Crafts and Decor, by Woodpeckers