Samer's Wonderful cakes #2

Marlow came back to Samer’s bakery a week later and said. "My sister heard so much about my cake that she wants one too. She is also having four guests for her birthday party. But her guests eat a lot so make her rectangular cake larger than mine. Scratch a 6 x 4 grid of squares on the icing. Her four guests will share all of the cake equally. The four pieces of cake must be identical in shape. Each piece of cake must have one star cookie and one crinkled circle cookie on it."

Samer replied, "Hum, your sister's cake is little bit harder to bake but I think I can do it. Come back in a while."

Marlow returned an hour later and there was the cake, fresh out of the oven.

Samer said, "This is your sister's cake. She should be able to cut four identical pieces of cake so that each piece has one star cookie and one crinkled circle cookie somewhere on it."

Marlow grinned, "I hope my sister has just as much fun figuring out how to cut her cake as I did."