I'm making a cake for my neices highschool for an auction. I want to make a cow sitting on top of the cake - molded out of rice krispy treat mix and covered with fondant. My schedule for the 5 days prior to delivery is just crazy! 
I was wondering how far in advance could I make the cow? Would the fondant kind of seal in some of the freshness? Do you think 1 weeks time is too long? Would it be rock hard if I did it that far in advance? I'm going to attempt to make a smaller version of Lambshack's "Cow in the Grass" cake (it is just the cutest cake!). Any suggestions or help would be greatly appreciated. 
I just made a Clone Wars helmet out of RKT covered in fondant that I put on top of a cake for my niece. I molded and covered the helmet a full week ahead of time and it did not get rock hard. I was still able to easily insert a dowel before placing it on the cake. Whether it was still fresh enough to eat... I don't know because my niece has it on display under a glass vase and will never eat it. HTH.
Thanks for the input. that gives me hope. Maybe I'll do a little research piece this weekend and see what it looks/tastes like within a weeks time. 
I don't expect the people to eat the cow but just in case.....
Marion - I'm up in Enfield. Thank you for the compliment. Yours are as well. Hope everyone has a great weekend.
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