Hi there! I was also looking for a yogurt frosting recipe for dog biscuits. I too some day would like to open up a cute little posh doggie cafe, with free wifi of course:) Anyhow, I saw you were looking for edible glitter as well. If there is some type of large craft store in your area, I would check there. That's where I get mine, in the "cake decorating" area. I hope I've helped in some way. GOOD LUCK!!!