Pour the cranberry juice, cherry juice, syrup, and vodka into a pitcher and mix until combined. Using a funnel, carefully pour into each ornament. Replace the topper.
Place each filled ornament upright on a muffin pan and chill in the for two hours or overnight.
Place the filled cocktails into the martini glasses.
Before drinking, slowly pour the contents into the martini glass.
Garnish with sugared cranberries and a rosemary sprig.