I am preparing for a bridal fair in January. How far in advance do you think a dummy cake can be prepared without the white fondant yellowing? I am also doing a chocolate brown fondant with pink accents. Is there any advice on how to preserve the color without it fading? I am open to all suggestions and appreciate the help!

You could easily start them now, if that's what you're wondering. They shouldn't change color that much, if at all, by January.

Yes, that is exactly what I was trying to say! Thanks for your reply. It is encouraging that I can start now.

The pink will fade if it's exposed to light for that long. Once you're done, cover the entire cake in a dark garbage bag or in any plastic bag and store it in a closet or some other dark place until the show.

I have dummy cakes that I've been carting around for YEARS. The pink one is gonna have to retire this year though. I can't even call it "dusty" pink any more it's so faded.