We bought more flowers at the farmer's market this morning (see last weekend's results and instructions here). This time we got dahlias and roses, and they turned out great. The quality of these pics is pretty low - they're much prettier in person!
This arrangement has red, purple and white dahlias, and white roses. For our wedding it'll be more multi-colored with pinks and oranges.
I had enough left over to make one vase with just white dahlias and white roses. I like the colored ones more though.