Display Of Ferns and Bromeliads - Harrogate 2008

I think these are air plants
They look like they are from another planet:)

the other name for them of course is air-ferns
they are so interesting there is another exhibitor at some of the RHS show and he is called Aldo air-plants from Belgium
i am not sure but i dont think this display is Aldo.

Looks like a couple of elk ferns and a lot of Tillandsia's . I would like to know what the plants are attached to , looks like a bath sponge from a gourd.ANYONE KNOW????