Calcium Perches
A calcium perch does two jobs at once, giving your bird somewhere to stand and a mineral source it will use casually through the day.
They suit laying hens and breeding birds particularly well, and they provide a mild beak conditioning surface at the same time. Avi One, PenPlax, Nature Island and All Pet Avian Care supply the range in several diameters. Treat them as a supplement to a proper diet rather than your only calcium source, and pair with cuttlebone.