Preheat the Oven: Preheat your oven to 350°F (175°C). Line a cupcake pan with cupcake liners.

Mix the Cupcake Batter: In a bowl, combine flour, baking powder, and salt. In another bowl, beat the butter and sugar until light and fluffy. Add eggs one at a time, mixing well after each addition. Mix in vanilla extract. Gradually add the flour mixture, alternating with milk, mixing until just combined.

Bake the Cupcakes: Divide the batter evenly among the cupcake liners. Bake in the preheated oven for 18-20 minutes or until a toothpick inserted into the center comes out clean. Allow the cupcakes to cool completely on a wire rack.

Prepare the Frosting: In a large bowl, beat the butter until creamy and smooth. Gradually add powdered sugar, mixing until smooth. Mix in vanilla extract. Add milk as needed to achieve a spreadable consistency.

Decorate the Cupcakes: Once cupcakes are cool, pipe frosting onto each cupcake, creating a dome shape. Place edible figurines or decorations on top of the frosting. Carefully cover each cupcake with a clear plastic globe or gelatin bubble. Lightly dust with edible glitter or powdered sugar to mimic snow.