Making your own sidewalk chalk from scratch sounds complicated, but it’s actually super easy and a perfect craft for summer. The best part? Kids can call the shots from the beginning by making their chalk into unique shapes and colors. Whether you’re looking for a quick mad-scientist project or a way to custom-make your own trademark art supplies, here is the simple recipe.
What you need:
- 1 cup plaster of Paris
- ¾ cup water
- Disposable mixing container
- Dried tempera paint or food coloring
- Something to use as a mold: cookie cutters, empty toilet paper rolls, paper Dixie cups, empty egg cartons, muffin tins, etc. If you use a metal or otherwise non-disposable mold, make sure to coat it thoroughly with Vaseline to prevent the chalk from sticking!
- Tray lined with waxed paper
What to do:
- Mix plaster of Paris and water together in your mixing container.
- Add dried tempera paint or food dye for color. If you use tempera paint, make sure to mix thoroughly so there are no lumps.
- Place molds on a tray lined with waxed paper.
- Wait 2-3 hours.
- If you used a paper mold, peel it off and let the freestanding chalk dry for another ½ hour. If you used a metal or plastic mold, wait another ½ hour and then pop the chalk out. The chalk is done when it’s dry and firm and doesn’t have any “give."
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