Can I use an iron tray as a bedside lamp base?

Iron trays are definitely worth it. Beija Flor has some lovely design ideas, from contemporary, to more classic approaches, so many options that will suit whatever design aesthetic you are going for. Iron is a strong and sturdy material that will last for many years. they also come in various sizes, so you can play around. Simply wipe with a damp cloth and keep dry to avoid rust or wobble.