If you love candles like me then it will be easy for you to use up a candle and remove the wax- I usually wait until the candle burner is right down to the bottom, crack the wax with a knife and then scrape/pull it out. If you don’t know how to empty out the candle jar here’s the Wiki page on how to clean a candle jar.
There are beautiful candles available from most shops so it won’t be difficult at all for you to find some that match your decor.
You can use them for anything.. I can never find any stylish brush/ring storage in the shops- they’re usually too big or small or ugly. With candles there are endless possibilities on their design and their uses.