I've been looking at cake pictures, here, and have wondered...how do they make cakes shiny? Like it looks like a layer of almost candy coating on some of them.
Steaming them with a steamer will make fondant really shiny.
Most people rub them with shortening or vegetable oil. When I steam my fondant, it stays shiny for only a little while but returns matte again. I only steam to remove the excess cornstarch and make the color more bright.
I read recently a blog where the woman, sprays her cakes with PAM oil...I recently made flowers for my grand babys 1st bday party...and I bought those wilton glitter gels and painted the flowers, they looked real bright and shiney, pretty. I dont work in fondant so wasnt sure if they would be destroyed but they were fine.