so i am making my good friends wedding cake for this saturday. i am doing a sandcastle cake. i thought i wud do RKT for the towers, and am now trying it...and am having NO luck. How do I do these??? Please help!

What about using a non-food item, like paper towel rolls or pringles cans? Just cover with fondant and no one will know...they weren't going to serve the RKT at the wedding anyhow

yeah thats def a back up... i am just wondering what i am doing wrong with RKT...i am making regular RKT and trying to roll them...cud they be too thin?? should i let them get harder first??

what about ice cream cones, the pointy ones? or how about modeling chocolate? You know if you could find a castle bucket and filled it with melted chcolate, that would be cool hehe........not sure if that would work for a wedding though

I've heard of packing it into pringles cans as molds. Guess you'd have to spray it well with pam spray to make sure it would come out. When I've used it before I have put half the rice krispies in the blender first so I had a stronger mixture. It made it heavier though.

I make my RKTs a little more dense (more cereal to less liquid, but I mash up the cereal a bit) when I'm sculpting with them ... could it be you have too much liquid in your mix? It could also be, like you said, that you have to let it harden a bit. To follow up on Texas_Rose's idea, though, you still have time to cover paper towel rolls with gumpaste, let it harden, and remove the rolls by tomorrow night, if you make them nice and thin. That way you could still have all edible. Good luck! HTH!

I usually mix a little modeling chocolate in with my RKT to get them to be more pliable. I just did a castle (not a sand castle tho) last weekend and I used stacked Oreos for the tourets....worked really well. Good luck to you!

would fondant work?? if i covered a tube of some sort and let it dry out??

this is kind of the style i am aiming for...

http://blog.pinkcakebox.com/sandcastle-cake-2008-10-02.htm

Would this help. You could make the stack of cupcakes as high as you wanted.
http://sugarbloomcupcakes.blogspot.com/2009/05/tall-cupcakes-tutorial.html
If the link doesn't work google sugarbloom tall cupcake tutorial.

How about using pastillage or foam?