I have been looking for a nice bag to put my girls' jewelry in since that will be one of their gifts for the wedding. Most places I find them to be rather expensive for just a little satin sack. I happened to find these cute and inexpensive satin bags at: http://www.papermart.com/Product%20Pages/Product.aspx?GroupID=2570&SubGroupID=2571&ParentGroupID=18957#2571
There are some other fabulous options there as well like leopard print, mesh, lace, crystalized, striped, metallic, the list goes on. This site is great in general for anyone who does alot of DIY. They only come in quantities of 30 but the prices start at only $4.80 and goes up to $13.80 based on the size you want, so even with the highest price you're only paying 46 cents per bag! And for that price you know you can find something else to do with the bags. Use them for a future gift, give gifts to other people who helped with the wedding, or even donate them to an upcoming bride! I am considering getting them monogrammed w/ my girls initials.
Happy Shopping!