How to make edible sand and water for a cake

To make sand for a cake you can use biscuits or cookies to the color you want and crush them up, some examples of these are:

• graham crackers.
• vanilla wafers.
• shortbread cookies.
• you can also add sparkling sugar or Cake Sparkles into the biscuit crumbs to add a glisten to the sand.

To make water for a cake you can:

• Use piping gel that you've colored.
• Sparkles Gel which is a brand of piping gel which adds a glisten to the water.
• Cover the water section in white acing and create wave like lumps of icing which you can then cover with the piping gel, or you can use a spatula.
• Use butter cream in different shades and use a spatula.
• Use gelatin which works good for ponds, but it has to be directly on cake because it's too wet for fondant.