Half-domed pearls

Hi everybody, I need your help. My daughter is getting married (YIPPEE!!!). We are having so much fun planning everything. We decided to pick out the favors for the reception and came across the cutest idea. It is a clear little glass flower pot in which you place a votive candle. The flower pot is adorned with 8mm half domed pearls (ivory colored) and a ribbon around the top of the pot. Then they are wrapped up in tulle and tied with a bow. The problem is that I can't find the half-domed pearls that we need. All I can find are combination packages in which you may find 5-6 of the required size at a cost of between $2.99-$3.49 per package. I need 900 of the little stinkers. I think that I have seen these types of pearls in the past but, of course, now that I'm trying to find them they all seem to have disappeared. Has anyone out there seen packages of the 8mm ivory half-domes pearls? I have searched the internet under google, I've checked out Michaels, Jo Annes, Total Crafts and Wal-Mart's and can't believe that I haven't found anything. I even thought that if push came to shove, we could get the little buttons that come on cards and chop of the attachment parts but the cards that I found had only 5 on each card. A little pricey when you need 900. Luckily, we started in plenty of time to get things done but we may have to change to rhinestones. If anyone has seen these types of pearls, please let me know where to find them. Thanks in advance. Cheryl