Tell us about yourself!
When I made this (I'll post pictures later), I actually made 2 different batches of rice Krispies. For the beach, I cut the recipe by 1/3. I then did a full recipe and added the food coloring to the marshmallows while melting them. It worked amazingly well and then I made Creeper Krispies with the excess. I used a lot of food coloring. About 12 drops blue and double that in yellow. Otherwise, it's more of a turquoise color.
Minecraft World Cake