At first, most trees decorations were home-made, like paper chains, or natural objects, like pine cones. A cornucopia was a brightly decorated paper cone filled with sweets. Sugar plums were plums coated in sugar syrup (http://www.bbc.co.uk/victorianchristmas/activity/sugar-plums.shtml). Families also made each other small presents, wrapped them and hung them on the tree. Small candles in holders were fastened to the tips of branches, to light up the tree. These were very pretty, but also dangerous. Now, we use fairy lights instead.