Cast in metal alloy and finished in warm gold, the orb does what the simplest objects do best: it gives a surface a center. Set one on a stack of books, cluster three sizes in a bowl, or let a single large sphere hold a console on its own. The gold picks up lamplight in the evening and reads quieter by day, which is exactly the range a decorative object should have.
Three sizes, so the arrangement is yours to decide.
