Bonnets, doors, windows, engine covers and wings from decommissioned Ferraris, Porsches and a Jet Provost become one-off works. Every piece keeps the shape of the part it came from.

Retired London bus panels, sheet aluminium and curved steel, normally go to the scrapyard to be weighed in. We frame them as individual pieces instead. A third life, on a wall.

Layers of PVC, scrim and printed branding make lorry curtains hard to recycle, so they usually end up in landfill. We paint on them instead. They're heavier than canvas and keep the marks of the last job: a scuff, a bolt-hole, a faded logo. We leave those in.

Some of our work is painted on plastic that was never going to be recycled. We process it into a paintable surface. A painting on this says something that a painting on fresh cotton can't.

A commission this size would normally mean building a set or hoarding from scratch. Instead, the fuselage, wings and tail of an out-of-service aircraft became the work. Fewer materials made, and fewer thrown away.

A London bus at the end of its working life was heading for scrap. Slawn painted it and kept it on the road. The simplest kind of sustainability: paint what already exists.