Place the dark chocolate chips in a microwave-safe bowl and heat in 20-second bursts, stirring between each, until fully melted and smooth.

Dip the bottom half of each strawberry into the melted dark chocolate, letting excess drip off, then set the strawberries on a parchment-lined tray to firm up slightly.

Set one chocolate cookie on the board as the brim of each hat. Press one dipped strawberry, point up, into the center of each cookie to form the cone.

Use a small spoon to drizzle a thin line of melted dark chocolate around the base of each strawberry where it meets the cookie for extra hold.

Scatter raspberries and blueberries around the hats on the board to fill empty spaces and add color.

Melt the white chocolate chips the same way as the dark chocolate, then drizzle a small amount over each hat to create a simple band detail.