Line a sheet pan with parchment paper. Preheat the oven to 250 F.
In a medium mixing bowl, stir together the water and salt.
Stir the flour in, and once it starts to come together, take it out of the bowl and kneed it until it is soft and playable for about 10 minutes.
Roll out the dough to 1/4 inch thick. Using an egg-shaped cookie cutter, cut out the eggs. You can re-roll any leftover dough to make more eggs. Using a straw, punch a hole on the top of the egg so you can hang them.
Place them on the sheet Pan and bake at 250 degrees F for 2 hours until they are hard and dry.
Allow the eggs to cool.
Paint the eggs with your favorite colors, and don't forget to paint the sides and backs.
Once the base coats are dried, paint on fun designs like polka dots, lines, and zigzags.