There were no white letters in the Fisher-Price magnets. But, back in 1893, Miss C. and the other subjects interviewed by Wellesley students also had a tendency to connect “O” and the color white.

2. Toyssa 253 PCs Magnetic Numbers and Letters. If the mere thought of adding more little pieces to your child’s toy collection stresses you out, we get it.

Each pack of Pixel Premium Magnetic Foam Letters ($17) comes with an ultra-light magnetic dry-erase whiteboard and more than 40 learning games. Plus, the product touts itself as the "safer, ...

You can find magnetic letters at most dollar stores, which makes this DIY wonderfully cheap. Remove the letters from the container and position on a layer of newspaper or piece of cardboard in a ...