- A study seat base. A recycled galvanised bin for a full size and a metal bucket for a kids' sized seat.
- Polystyrene foam, broken into small pieces
- Geotextile fabric/drain mat or shade cloth.
- Drill (electric or hand drill) and drill bit. Safety glasses, gloves, hearing protection.
- Good quality potting mix with added compost.
- Plants, plants, plants!