If a lily pad is placed on water in a place where water can freeze , the lily pad will not break if the water freezes, resulting in a lily pad on ice, and sugar cane doesn't break when water freezes into ice either.

1. find or place some water where it could freeze
2. place a lily pad on the water
3. wait for the water to freeze

When the water freezes, the lily pad will still be there on the ice. For sugar cane:

1. Find a sugarcane stalk naturally generated in the world where there is frozen water.
2. The sugar cane you found should be next to ice and no water. The ice doesn't cause the sugarcane to break when the world generates.