Need ideas for wedding reception centerpieces, please?

We are getting married in June. Our colors are claret (a deeper red), white, and silver. Our tables are going to be 66" wide and seat 8 people per table. The reception should be about 50-60 people (so, 6-7 tables). We are having Gerber daisies (one of each, hand-tied) in red, orange and yellow for the bridesmaids and a single red rose boutonni�re for the men. I am thinking of sprinkling red rose petals on the table, but am not set on that. We are looking for candle-type centerpieces, or, floral. We aren't looking to spend more than about $300 in total on them. Thank you in advance for any help. I really appreciate it! =-)