I used Hologram Silver Luster Dust on a cake. It goes on transparent and adds sparkle. I've also used Disco Pink Luster Dust. It was like tiny speckles of glitter and gave the cake an irredescent effect.
The hologram Silver has some yellow/gold specks in it. So, you might want to go with something white or irredescent.
Whatever you use, I suggest you try it on a "sample" piece of MMF first and wait until it dries to see if it's going to be the look you want.
Hope this helps.
My great grandmother's nickname was Big Mamma. But, she was tiny.
It's my new nickname because I've lost 90 pounds.
Good Luck with your cake!
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