These are not organza but I will put the link here for anyone who is interested,
www.statelinebag.com
If you click on their wholesale webstore link, you will get prices for their muslin drawstring bags. These can be printed on with stamps. They are quite reasonable, working out at 13-14 cents each. I haven't ordered from them yet, but will in the near future. I got their details from someone on another jewellery page. Jennie