I have a bride who wants a fondant covered cake with sugar crystal 'ice' all over.
Has anyone done this? How did it turn out? Any tips? and do the crystals fall off easily?

Thanks

You can lightly paint the fondant with egg white (or a mixture of meringue powder and water) Then sprinkle a mixture of white sanding sugar and a few dashes of white edible glitter for a nice ice effect. Or use the large crystal sugar. Let it set and give it a couple of gentle drops on the counter to shake loose any that hasn't adhered. The egg white/meringue powder acts as a serious glue. It won't fall off. But if any does, using sanding sugar will make less obvious bald spots than large crystal sugar.

Or brush with a clear alcohol like gin or vodka and sprinkle the sugar crystals on the rolled out fondant then with your roller press it into the fondant then cover the cake with the fondant (use a fondant lifter instead of the "roller" method of covering). To smooth use your fondant smoother as usual, any bald spots can then be "doctored" by rebrushing with the alcohol and hand pressing the sugar in those spot then press the fondant smoother without rubbing in a rocking motion to adhere the sugar.

Thank you, those are both great ideas!