Where to find artificial beaches?

I do my bridal bouquet and my girls me flowers. I know what I want and I'd rather do it myself. I having trouble finding just bulk calla lilies. I want to find the real contact or latex type, but I know they are only planning to buy thoes pricier.I quiet, because I have intend to use for the ceremony and reception. I hear the ideas you guys let me know! Thanks!

Michaels has some very beautiful in this time.

Wedding Flowers & Floral Arrangements : How to Find Bridal Bouquet Ideas