What is the best way to get a sparkle finish when using Toba's glaze on cookies? I tried brushing luster dust mixed with vodka on the hardened glaze, but it got sticky and not very sparkled. Should I use petal dust or something else? I guess I just don't know the difference between the different dusts -- when to mix and when to apply dry. Also, how do I get a sparkle on RI flowers? I know you talented and generous CC people can advise. Thanks.

Petal dust isn't sparkly at all. Luster dust has a little sparkle. Disco dust has the most sparkle. I dry brush luster dust on cookies after icing is dry. Here is an example http://www.thatreallyfrostsme.com/2010/05/shark-cookies.html

Hope that helps.

Ya luster dust is more metalicy i find, I use it when i want something to look like metal.

And I use it dry