Preheat oven to 250 degrees and line a baking sheet with parchment paper.
In a large bowl, mix together flour, salt, and water. Use a large spoon or fingertips*
Add a tablespoon of water as needed if the dough is too dry. Add a tablespoon of flour if the dough is too sticky/runny.
Once mixed, knead the dough for a few minutes until smooth.
Roll out salt dough onto a flat surface with a rolling pin.
For handprints: Place child's hand and press down in the dough. To cut out the handprint, place a bowl mug, or cup that is large enough over the hand print. Press it down to make a clean cut around the handprint.
For ornaments: Press down in the dough with different cookie cutters.
Use a straw to make a hole at the top to hang as an ornament.
Place the ornaments on the baking sheet.
For larger handprint ornaments: bake for 2-3 hours. Flip the ornaments halfway through.
For smaller ornaments: bake 1 - 1.5 hours. Flip the ornaments halfway through.
Once cooled, paint as desired.
When the paint has dried, seal with mod podge. Use a clean paintbrush to cover one side with mod podge. Allow it dry, then flip and do the other side of the ornament.