Margaret Simons puts a new spin on the humble compost bin, writes Christopher Bantick.
Compost cellophane wrap too, as it's actually plant based not plastic.
I suspect they have all ended up in the compost bin, mistakenly swept up with the vegetable peelings and kitchen scraps.
They are shredded, converted to plastic pellets and remade into robust tools such as garden compost bins, wheel barrows.
The compost loos, which are large, clean and (mostly) odourless, are drained to a holding tank.
So our students know about worms, compost and heirloom varieties.