Here are a few cool things to try with your eggs: *Put the egg in a jar full of normal vinegar for a few days. The vinegar will dissolve the shell and the membrane will be all that is left holding the egg togather. Also if you take the egg out of the vinegar and leave it sit for a day or so it should have enough calcium left in it to recreate a shell. Pretty cool huh? *Put the egg in a jar full of corn syrup for a few days. Because the egg has more water inside of it than the syrup a lot of the water will eventually drain into the corn syrup causing the egg to shrink in the jar. *Put one egg in a jar full of food coloring water and another in a jar with (non-watercolor) paint. After about two days take both eggs out and crack them open in seperate containers. The one in the food coloring water should have absorbed whatever color the food coloring is but the other one should look normal. The egg rejects the paint water and will not let it in because of the toxins in the paint. Have fun!