If I made some fondant figures for DD's birthday cake (which I am STUPIDLY excited about, incidentally!) would they still look ok after a few weeks? I just use the standard fondant icing you buy in supermarkets, btw. Will they crack or lose their colour or something? I've made them a week in advance before but there are a lot to make this time and I wondered if I could do any of them now, even though it's about 5 weeks away.
Also I read about adding gum tragacanth (sp?) to fondant icing - is that a good idea and if so why? Or is that just if you're making your own fondant (I'm sure I read you can add it to shop bought ready-to-roll stuff)