1. Breakfast cereal that crunches in different tones every time you chew so it makes a song.
2. Sleds with wheels so you can go sledding in the summertime.
3. A store like a coffee shop but they only sell hot water and cold water. They have many different types of filters and water but only water. They have distilled water and filtered water, city water and water from other countries. Water from famous water sources and even expensive water that the president drinks.
4. Prank sharpies that are not permanent but look and smell the same as regular sharpies.
5. A digital mask that changes to the face of who ever you are talking to.