Step 1: Combine Dry Ingredients. In a large mixing bowl, thoroughly combine the ground cinnamon, ground cloves (if using), and ground nutmeg (if using). Whisk them together to ensure an even distribution of scents.
Step 2: Add Wet Ingredients. Gradually add the unsweetened applesauce and white school glue to the dry mixture. Start by mixing with a spoon, then switch to your hands once the mixture becomes too thick. Knead the dough vigorously for about 5-10 minutes until it forms a smooth, firm, and uniform ball. It should feel like firm playdough, not sticky. Adjust with more cinnamon or applesauce if needed.
Step 3: Roll Out the Dough. Lightly dust your work surface and rolling pin with a little extra cinnamon. Roll the dough evenly to about 1/4 inch thick.
Step 4: Cut Out Shapes. Use your favorite cookie cutters to cut out festive shapes. Carefully transfer the cut shapes to a baking sheet lined with parchment paper. Re-roll any dough scraps and continue cutting.
Step 5: Create Hanging Holes. Before drying, use a drinking straw or a skewer to create a hole at the top of each ornament. Make sure the hole is large enough for your ribbon.
Step 6: Dry the Ornaments. Air dry them in a warm, dry place for 2-3 days, flipping occasionally, or bake at the lowest possible oven temperature (150-200°F or 65-95°C) for 2-3 hours, until completely hard. Keep the oven door slightly ajar if baking.
Step 7: Decorate and Finish. Once completely dry and cooled, thread a festive ribbon or twine through the holes. Optionally, decorate with glitter glue or metallic paint.