I have a customer who wants a Blues Clues cake. I have never usde RKT, but thought I would make Blues and her baby brother Sprinkles sculpted out of RKT. I was going to make a practice run this weekend which is about 1 mo. early (like to give my self lots of time incase some thing does not go right). IF, and this is a big IF I do really good and like how they come out I was wondering if any one knew how long they would last. Can they be stored some how for that long?
I've used RKT many times and they can last indefinately if you like them rock hard. If they plan on eating that part of the decoration, I'd say a day or two at most because it will get hard pretty fast.