Many of us love these puzzles so much that we use ... If you're looking for a true art piece, then Unidragon's 1,000-piece ...

Not only do his varied puzzle box designs show his math background, but they are all made entirely of wood. There are no nails ... two things stood out to us as being of particular interest.

like stacking toys that support fine motor skills and early math concepts or puzzles that can double as imaginative play items. Because wooden toys can be pricey, I tried to keep most options ...