I hired a florist for the bouquet, boutonniere, and corsages, but made my own super-simple centerpieces with Big Fun Sherbet Roses and Apricot Stock.
We needed 30 centerpieces. I used clear cylinder vases from Dollar Tree ($1 each!), with five roses in each and two stems of apricot stock. They were very simple and added a lot of color to the wedding. Friends helped the night before to trim and arrange all of the flowers. We kept the vases of flowers in the fridge overnight, and a few of them were too close to the fan and froze, so be careful of that. A few roses broke, so we used those for the cake and some petals for the hors d' oeuvres table.
I love the color of these - red, pink, coral, and gold - and would recommend them!