To hang Christmas balls from the ceiling, you'll need a few materials and some basic steps. First, you'll need to get some sturdy hooks or hooks designed for hanging Christmas decorations. These can be found at most craft or home improvement stores. Next, you'll need to measure out the space where you want the decorations to be hung, making sure to leave enough room for them to hang down. Finally, you'll need to attach the hooks to the ceiling, using a drill or nails, depending on the type of hook you have.