I'm hosting a cookie decorating party next weekend, sugar and gingerbread cookies, for around 35 people. I need to get large quantities of decorating sugars, sprinkles, little candies and such. Icing is not a problem; that can be whipped up at home.
Where can I find larger quantities than the Wilton's brand jars? The Wilton brand seems kind of expensive for such small amounts.
I am in San Francisco and would prefer to stay in SF or within 10 miles or so.