1.   Tape two paper plates together to create a spaceship with a curved top and bottom.

2.   The Athos table by Zeritalia has a curved plate-glass top supported by a beechwood base with four rubber wheels.

3.   The design is simplicity itself, a solid wood gate with a curved top joining two beech hedge walls, but the impact is powerful.

4.   The curved tops are better than square ones because they shed more water than square tops.