My friend and I used to explore tracts of urban wilderness while walking our dogs around Melbourne. A ubiquitous feature of the urban landscape in which we walked were abandoned home-made bongs and we were so charmed by their variety and character that we picked up and kept many of those we saw.

Bongs and pipes like the ones we collected can be found in playgrounds and parking lots in all large Australian cities. They are typically made from an evacuated plastic fruit-juice container and a length of garden hose - economical and disposable smoking devices improvised by young people for their drug-taking pleasures.

We had originally thought that the bongs should be professionally photographed and reproduced in the form of a hardcover, coffee-table kind of book but this took a long time to realise. In the meantime I began modelling and rendering some of them using 3-D software.