my son is turning 12 and he wants me to make a rock wall cake(indoor climing). I am having a problem on how to do an inverted curve for the boldering wall side of the cake without the top of the cake/wall falling?
any ideas would be helpful.
thanks

I'd think you could get a really slight curve with fondant covered, VERY compressed Rice Krispy Treats. I've got one in my photos, but it's completely straight - like the one's you'd see at the sporting goods stores. Good luck.

I just made a rock wall cake for my daughter. I used two 8" and one 9" layers covered in fondant. Carved slightly. I didn't cut all the extra fondant off either. I used the extra for the crevices etc. I just formed the extra fondant with my hands. I used cardboard rounds for support between layers and a dowel rod through the entire cake. I transported it 7 hours and it never moved.

http://media.cakecentral.com/gallery/176903/1256599485.jpg

Here is a link to a wonderful tutorial. how to Carve A Spiral Cake
Posted by Berecca
http://cakecentral.com/articles/662/how-to-carve-a-spiral-cake