1. Add them to compost
Eggshells quickly decompose, and add valuable calcium and other minerals to the soil in the process.
2. Control pests in your garden
Scatter crushed shells around your plants and flowers to deter plant-eating slugs and snails, and without using pesticides.
3. Fed them to chickens
Laying hens need a lot of calcium, of which eggshells are rich. Rinse and clean empty shells to remove any membrane. Bake them in the oven for 5 to 10 minutes on a fairly high heat and crush into small pieces. Add to chickens daily feed for a boost of calcium.
4. Clean your house
Shake crushed eggshells and a little soapy water into hard-to-clean items like thermoses and vases. Crushed eggshells can also be used as a nontoxic abrasive on pots and pans.
5. Get crafty
Blow out the inside of a raw egg and decorate the hollow shell. You can also place a small wick in a eggshell halve and pour in melted wax to use as mini candles.
6. Egg themed bowls
Carefully fill eggshell halves with chocolate mouse to make unique egg-shaped serving bowl.
7. Keep drains clear
A couple crushed eggshells in your kitchen sink strainer will trap solids, and keep them from clogging your pipes. And as the shells gradually break up, they'll even scour your pipes on their way down the drain.
8. Plant seedlings
Fill eggshell halves with potting soil and seeds to start them off. Try starting a dozen seedlings in a egg box on your windowsill before transplanting them to the garden in the spring.
9. Treat skin irritation
Dissolve an eggshell in a small jar of apple cider vinegar (it takes about two days) and use the calcium-rich mixture to treat minor skin irritations and itches.
10. Put on a mask
Pulverize dried egg shells with a mortar and pestle, and combine the powder with an egg white to use as a skin-tightening face mask. Allow it to dry before rinsing it off.