I picked up some colourful little buckets that are designed to hook over a fence or balcony rail.

The peregrine was perched on a balcony rail at the hospital: urban peregrines are a fact of life these days.

Ornate plaster panels also lined the balcony rail and the proscenium arch.

Much of the detail of the house survives, including tubular steel balcony rails.

Don't forget about the vertical plane: you can grow plants that scramble along the balcony rails, up a wall or along a fence.