These are so beautiful and have a wonderful citrus fragrance. All you need are some clementines (also called tangerines), a knife, some oil, and a lighter.
Be sure to cut a big enough hole in the top so that the peel won’t burn. They show a star shape, but you could use a cookie cutter for another shape.
Read the comments for good suggestions for making this work.
Place the candle on a fire proof saucer & keep an eye on it while it’s burning.
Click title for link at Instructables.