For those of you who have done this, can I do the effect on a fondant iced cake and then refrigerate? I've never done it before, so I don't know what the effect will be if it gets cold/moist.
Also, if I can refrig, for how many days? I may get the cake done a day or two early (we can only hope!).

TIA!

My instructor says "do not refrigerate fondant"

From reading other posts, I think it is o.k. out of the fridge after covered in fondant as long as the filling or something else doesn't need to be refridgerated.

I'm not so worried about the cake, but if i can get the design done prior, i'm more worried about the embroidery running or sliding once the cake starts to come to room temp and "sweat". I refrigerate fondant cakes all the time. no big deal. just the royal icing is my concern.

If you have color on your cake the condensation can make it run. Ive had royal icing on a fondant cake and not had any problems with it doing anything to the design as long as it was white. But airbrushing gets really messy from condensation.
I just recently bought an item that is suppose to keep condesation from your cake and gumpaste items. I bought it from Geraldine Randsome's site but I have not tried it out yet.

thanks, weirkd. you gave me the exact answer i was looking for. this cake will be white on white, so no color run. just the issue of it sliding. now i can take my time with this design. yippee! its a huge cake, 14", 11", 9" all round, to feed 150/200. i'm so excited now, thanks again, to all of you!

Glad to of helped!

I, too, have heard that royal icing does well