Wondering how much luster dust I will need If I am using it to airbrush 150 cupcakes gold. Planning on tinting the butter cream a light brownish first.
one of these would do it -- there's a smaller size that would also be enough but this size is more economical
and of course you would line them all up and spray them all at once in a group and just turn the group of cupcakes around and around to get all sides -- don't spray them individually -- i would recommend going with a brighter color underneath like a golden yellow --
while they are in this grouping -- protect the perimeter cupcake wrappers with paper towels or parchment to deflect the spray -- you don't want the guests to get gold paint on their fingers at the event --
best to you