Prepare a baking sheet with parchment paper. Melt chocolates in the microwave at 20 second intervals until completely melted.
Place pink and purple chocolate in piping bags.
Spread white chcolate evenly on baking sheet.
Pipe strips of colored chocolate vertically along the white chocolate (about 1 inch apart).
Use a knife to swirl each strip of color.
Add Cadbury mini eggs and sprinkles.
Place baking sheet in the fridge for at least one hour. Once it is set up, break into pieces and serve.