You will need to take time to gather/ prepare these things:
Prayer space ideas here.
A special snack or small meal prepared and set aside for later.
Some paper or a notebook or journal and a pen. You only need one of these, as only one person will need to do writing for the whole family.
Silent fidgets (pipe cleaners, Legos, etc) for anyone who needs something to do to help them listen better.
Set aside about 70 minutes when all outside communications stop, when you are energized but calm. The whole family can participate in this at-home / online retreat, so long as everyone agrees to try their best to really enter into it and participate.