Halloween Sugar Cookies (Monsters)

For dough:

• 1 package refrigerated sugar cookie dough (or use homemade recipe linked in note section)
• ¼ cup all purpose flour

For icing:

• 4 cups powdered sugar
• 3 tablespoons meringue powder
• 8-12 tablespoons room temperature water
• Gel food coloring

For decorating:

• candy monster eyes