This batter (recipe from Cooking with my Kid) is nice for this type of pancake because it is thin and can go through the narrow opening of a squirt bottle so you can "draw" whatever shapes you would like. Squirt bottles can be found at craft stores, and the cooking department of department stores. It is often with the candy making supplies.
2 cups all purpose or whole wheat flour or a mixture
3 tablespoons sugar
2 teaspoons baking powder
1 teaspoon baking soda
pinch of salt
2 cups buttermilk
2 tablespoons butter (melted) or vegetable oil
Preheat your griddle on medium heat. In a medium bowl, whisk together dry ingredients. Set aside. In a large bowl whisk together wet ingredients. Combine wet and dry being careful not to over mix. Throw some water on the griddle. If it sizzles, it is ready. Turn down the heat to medium-low and grease the griddle with cooking spray. Use a squirt bottle to place the pancake batter onto the griddle forming X, O and heart shapes. Wait until you see bubbles before you flip the pancake. Pancakes are done when they are golden brown.