If you have problems getting your candles to sit up straight in their holders, here are a few hints.
If the candle is a bit to large for the holder or just won’t stand up straight, bring a large pot of water to boil on your stove top.
Once the water has reached boiling, dip the bottom 2 inches of each candle into the water.
Let it warm up in the water for several minutes.
Pull it out and gently press into the holder. The candle should gently form to the base.
If the candle is not soft enough, simply place the candle end back into the water and wait a few more minutes until the candle is pliable.
If the candle is too small for the holder you can use some double stick foam tape to hold it in place.
Don’t forget to never leave a candle burning unattended.