If you are like me, I am sure the thought of how beautiful cardboard is had crossed your mind. All the possibilities of what you can do with it... I decided to turn mine into a hot pad. It's very easy and will take you about half an hour to an hour depending on how complicated your design would be.
You will need:
cutter of some sort (I used my fabric cutter but by all means feel free to use your scissors)
1. Cut the cardboard perpendicular to the waves (if you look through all the layers inside of it you will see the waves - don't cut along the waves)
2. Run the strips through something hard and round (like a handle of some sort) to make them more flexible and apply a small amount of glue along the perimeter
3. Start rolling your first strip so it would look like the photo below - easy! As the strip finishes, connect the ends with the next strip and continue
4. You can simply continue all the way or insert a design of your choice. I made a small flower. As I added the small circles I tied them while working on the next bunch. I recommend you rather using paper clips to keep your circles in place (I didn't have paper clips)