You will need:
- Wooden building blocks, clean and sanded. All shapes and sizes of blocks are appropriate for this project.
- Primer. You can use any primer that’s appropriate for wood and for your paints. Since I’m using artist’s acrylics, I prime with gesso.
- Paints and brushes. Choose the best-quality acrylic paints that you can afford. Craft acrylics are fine, but I personally prefer artist’s acrylics.
- Sealant or varnish. Again, use any sealant that’s appropriate to use with your paints.
2. Paint your blocks and let dry, again doing this in two stages. The flatter that you keep your painted surfaces, the better they’ll continue to function as building blocks, so avoid leaving ridges or drips in the paint as you work.
3. When the blocks are completely dry, usually overnight, seal them with your sealant or varnish.
These blocks are gorgeous, educational, creative, and fun, and since you painted them yourself, you know that they’re non-toxic.
Source: Crafting a Green World