Those "rocks" are really fun Lu, they are not unlike the foam rocks first made in 1970 by Gufram. They were designed by a group called Studio 65.

Gufram is an Italian company that mostly makes auditorium furniture, but in the early 1970s they produced some furniture/object designs inspired by Pop Art.

Left: Sassi. Right: Cactus coatstand.


Left: Bocca sofa. Right: Pratone giant grass.