Please choose the correct solution to the question: How can I create marbles with a shattered glass effect?

Solution1: Gather marbles, set oven to 400F, place marbles on baking sheet and bake for 20 minutes. After 20 minutes remove marbles and immediately submerge in hot water.

Solution2: Gather marbles, set oven to 400F, place marbles on baking sheet and bake for 20 minutes. After 20 minutes remove marbles and immediately submerge in ice water.

Answer format: solution1/solution2
Answer: solution2