If planning on baking them to dry more quickly, preheat your oven to 200°.
In a bowl, add flour and salt. Stir. Add water and work together. Start with one cup and then add a little bit at a time until it forms a nice dough ball that isn't too wet.
Place dough on a flour surface and roll out to about 1/4 inch thick.
Cut salt dough ornaments out using a cookie cutter, and place them on a parchment lined cookie sheet or baking dish.
Cut out holes to hand the ornaments with a straw, pressing it down where you would like and then wiggling it around a little to make it a little bigger.
Fix any areas that might have moved out of place when make the holes.
Continue to cut out the ornaments, rerolling out the dough, and cutting more until completely out of dough.
Bake for a few hours until completely dry. This could take 2-5 hours. Check every once in awhile to see if they are hard or if they still have some doughiness to them.
Once the salt dough ornaments are dry, you are free to decorate them as you desire. Paint, add sparkles, pretty ribbons, glue on some pom poms.
Add to your tree.
To store: Wrap in tissue paper and store in a box. Ideally, you would use a plastic box. We usually place them in a shoe box and then place them with the other ornaments it a big plastic storage container.