Prepare twelve 4-ounce glasses on a baking sheet or lightly grease a baking dish or bundt pan.

Boil about 5 cups of water for dissolving the gelatin.

In separate bowls, add each 3-ounce package of flavored gelatin. Pour ¾ cup of boiling water over each package and whisk until dissolved.

Allow the first gelatin mixture to cool to room temperature, refrigerating if necessary.

Blend in ¼ cup of milk and ½ cup of vanilla yogurt with the first gelatin mixture. Pour evenly into prepared cups and chill for 15 minutes.

Repeat the cooling and layering process with remaining gelatin colors, ensuring each layer sets properly.

Cover cups with plastic wrap and refrigerate for at least 4 hours.

Before serving, add whipped cream on top and sprinkle with colorful sprinkles.