4 cups flour
2 cups salt
4 tablespoons cream of tartar
4 cups water

Mix together in a large saucepan. Cook over medium heat until stiff. Cool and knead. If you plan to use the dough for sculpting you should also add 2 tablespoons of vegetable oil.

My favorite dough for creating projects is a cornstarch dough. It can be made with either salt or baking soda depending on the texture you want to achieve. Since you're thinking of using this dough for ocean floor you might want to use salt.

1 cup cornstarch
2 cups salt or baking soda
1 1/2 cups water

Mix together in a pan, bring to a boil and cook until stiff. Turn out onto a board and let cool, then knead until smooth.

Either recipe can be colored either before o...

I c. flour
1/2 c. salt
1 tsp. cream of tartar
1T cooking oil
1 c. water
1 pkg. unsweetened Kool-Aid or food coloring

Add food coloring or I pkg. Kool-Aid to water.

Add all the ingredients in a microwave bowl.

Stir every minute until it forms a ball. Takes 3-5 minutes.

Let it cool & store in a Zip-Lock in the refrigerator.

2 cups of plain flour
1 cup of salt
1 cup of water

Mix together, create masterpiece and then bake for 30mins on a low heat ie 120 degrees Celcius.
Let cool and then paint. Perhaps even insert a paperclip into the back of masterpiece before you cook it so that you can hang it up.

The general rule is to bake for 30 mins per cm thick the dough is.
GOODLUCK!

Favorite Play-Dough Recipe
2 cups flour
1 cup salt
2 cups water
2T. baby oil
2T. cream of tartar

Combine dry ingredients. Add liquids. Stir well. MIcrowave on high 4 to 5 minutes. Stir. Microwave an additional 1 minute. Repeat until it is the consistency of mashed potatoes. Cool enough to touch. Knead. Store in zip-lock bag.

3 cups of flour
1/2 cup of salt
3 tbsp. of oil
6 tsp. of creme of tartar
3 cups water
food coloring (I use icing coloring for cake makers)

Cook on a medium heat until stiff. Knead several times. Cool.

The creme of tartat is expensive when you buy it in a grocery store. I guess there is two kinds, one for "Crafting" and one for cooking. The one I get is for crafting and it is MUCH MUCH cheaper. Have fun!

Stone Dough
1/2 cup of salt
1 cup of flour
1/2 cup of brewed coffee (cold)
1 cup of used coffee grounds

Mix ingredients together in a bowl. Turn out onto wax paper and knead until smooth. If dough is too sticky, fold in a little more flour. A drier dough works best. I keep dough in the refrigerator until ready to use. To keep the objects you impress from sticking, dip them in flour before pressing into the dough. Let "fossils" air dry for several days. I turned mine so they could dry faster. The dough and fossils smell great! And they look so realistic.
Enjoy!