Hey Ladies, I plan on having a mix of tall and short centerpieces on my tables at the reception, but I have a question. I know a lot of people don't like tall centerpieces because they block people's view. I just want to know what is a good size to avoid this. Anybody else doing tall centerpieces? What are your vase heights. I was looking at 21" and I was just wondering if they would be tall enough. Thanx