It's always fun to see what people do with their Christmas trees after the holidays. If you ever go on Pinterest you'll find some really cool ideas or just surfing the web you'll find some interesting ways of making your tree last. This is one thing we've done with ours.
Step One: Cutting the tree trunk
Step Two: Decide where to drill cavity for candle.
Step Three: drill candle cavity
Step Four: drop in candle and you now have a rustic, natural candle holder and it took less then 15 minutes :-)