Before electricity made its way into most homes, Christmas trees had the warm glow of candlelight. The candles were attached to the tree branches via little metal clips. Most often they were decorative clips made in Germany, like these shown here. Since using candles to light your tree is neither practical, nor safe, we don’t recommend bringing back that tradition lightly. (No pun intended!) But that doesn’t mean you can’t safely use these charming bits of Christmas past this holiday.