1: 1. Natural fertilizer for plants 2. Pest repellent in the garden

2: 3. Homemade calcium supplement 4. Arts and crafts projects

3: 5. Cleaning agent for pots and pans

4: 6. Start seedlings in eggshell halves

5: 7. Reduce acidity in coffee

6: 8. Whiten and strengthen your teeth

7: 9. DIY beauty treatments for skin and hair

8: 10. Absorbency in homemade face masks

9: 11. Enhance compost pile with eggshells.