How do I determine how much edible glitter I need for a cake.  We have never done a cake totally covered before and I have no idea how much we need.  Can anyone offer any advice?

how big will the cake be?

10, 8, and 6 inch rounds.

Was planning to use the coarse sugar and mix it with the mother of pearl or white glitter.

You can take a container of coarse sugar and dump enough out to cover a 4x4 piece of paper, and estimate how much of the jar it took. Then, how many 4x4 sheets to cover your cake. Say it takes half a jar, and it takes 30 sheets of paper to cover the cake, then you need 15 jars.

Thanks so much for the idea!  It is not a cake we are looking forward to but a family friend has her heart set on it. I am sure you know that situation!

Thanks again.