These arrangements are made from all kinds of other containers.
This is a Fall arrangement in a re-purposed bronze incense holder. It has just about any kind of flower you can imagine, all in Fall colors.
This arrangement was made specifically for a 9-year old. The container is balsa wood, the same thing that model airplanes are made from. This is perfect for drawing, painting, coloring, etc.
These are pen holders made from aluminum cans--the kind that vegetables, beans, etc. come in. They're filled with marbles or some other glass gem, and wrapped in yarn. Pens stay put, and are in an attractive container.