Unless you have help, and can work really quickly, I would divide the ingredients into 3 batches and prepare each ‘layer’ separately.

Melt a third of the marshmallows, butter and rice crisps until smooth. Then press into 2 greased or lined loaf pans.

Prepare the middle layer the same, but add some orange food coloring to the melted butter first, then add remaining ingredients. Press over bottom layer.

Prepare top layer, using the yellow food coloring, and press into pans.

Let set for 2 hours, then remove from pan. Cut into 10 slices, then cut each in half vertically. Use your hands to gently shape the top into a cone shape.

Wrap each tightly in plastic to prevent drying out.