I put up a tree every year. But if you close there is a cup hook in the cieling where I put the tree. A bit of fishing line to the top of the tree (50lb test) and plastic and foam balls near the bottom and we are ready to go. All so no tinsel.
The kids love the silk covered foam balls, we are very careful too make sure that when they start to fray the silk is removed now they have a foam ball to play with for a while. So far no one has climbed a tree but we go though about 8-10 balls a year.