So I have everything bought for my center pieces, which I am of course, doing myself... but I just haven't had the time to put a "tester" together yet; however, here is where my inspiration is coming from (pictures)... Stay tuned because I will be putting one together soon! It will consist of blue vases, twigs sprayed with white spray paint, sparkles, hanging rhinestones, crystal fibers and blue/ silver rose petals... Can't wait!
http://www.bloomsandbranches.com/zencart/index.php?main_page=advanced_search_result&search_in_description=1&keyword=BBMNZWHT
http://www.koyalwholesale.com/pages-main-category-290_1088_1199/wedding_vases_and_centerpiece_suppliesnatural_branches_moss_flowerssequin_sparkle_branche.html
These can get pretty pricey though. I would recommend googling "wedding sparkle twigs" and a bunch will pop up. Also, take advantage of nature and collect them from the outdoors if you can. That would definitely be the most economical way. Then spray paint them and jazz them up with some sparkles/ glitter while the paint is still wet! Good luck!
Good luck!