Ladies, I'm sure this has already been addressed but I wasn't able to find it yet... I attended a wedding in Playa del Carmen last year. Her centerpieces were tall and beautiful. Unfortunately, it was super windy and the tall vases had to be set on their sides. I want to incorporate vases so my questions are: 1. Has anyone used plastic vases? (less weight to take down to Mexico) 2. If you did, did you have any problems with them knocking over bc of the wind? Im thinking maybe Ill put sand, water, flowers and a candle in them to keep them heavier, but they have to be a bit taller in order for the candle not to blow out! Thanks!