Modern polymers in sheets and foams can, of course, be used to create many useful support structures. It may be difficult to choose materials that are chemically inert and physically accommodating for long periods, carve them, and adhere them. Paper, which is easy to form and comes in numerous varieties, can be an inexpensive alternative. It accepts a wide range of adhesives and adapts to diverse designs and combinations of materials, accommodating the needs of many objects. Paper is one of the oldest storage materials and still one of the best.