So I see pictures all over the place with apples nicely in a vase with water and a pretty floating candle on top. My problem: Apples don't sink. Things I’ve Tried: I read one place that you boil them first and then the air leaves and the apples sink. But then all you have is mushy apples. I also pushed one screw up the bottom middle of the apple, still not heavy enough. So, any other ideas? Please Help!