I am making a castle-like cake in the near future. I wanted it to have four 3-D rectangular pillars on the corners of a 9x13. (Hope that makes sense )

I needed ideas as to what I should use to make the pillars. Would it be stable enough if I cut out 5" pieces of cake, covered it in fondant and stuck it in with a dowel rod? Would that tip over?

I haven't made one, but I've read about making the pillars out of the rice krispie treats recipe (minus the butter), then wrap them with fondant. Be sure to do a search, too; you'll probaby find some great helpful hints.

I am also making my first one for a cake order at the end of the month. I am following the directions of someone else here on Cake Central, but they used ice cream cones wrapped in fondant. That's what I am going to try. I am doing a practice run soon...we'll see! I have also heard of using PVC piping?

lsawyer, so i should just use marshmallows and the rice krispies in the recipe I use?

sbcakes, would you use anything other than BC to attach the cones onto the pillars? Unless if you're only using the cones...

Thank you so much for replying!

I believe that you will just use the ice cream cones and glue them together with royal icing. I am pasting the directions I was given by jenntatum...

"I used a square cake on bottom and the round on top. The whole cake is covered in fondant. I used a fondant cutter/emboser with the ridged wheel on it to make a brick pattern on the sides and the towers.
For the towers I took two of the cake style ice cream cones (not the sugar ones) and glued them with royal icing end to end. It's th small ends together. I also found that I need to file some pieces off the bottom to make them smooth so the would be flat. I just used a fingernail file for that. When they were dry I rolled a piece of fondant around them. (I used the wilton fondant for these cause it seems to be more forgiving and holds up well.) I did the same brick pattern on the towers as I did the cake.
To assemble the cake and towers I just did the cake like you would a normal stacked cake. I did notch the ends of the cake so the towers would fit in a little tighter. I took sugar cones and coated them in buttercream and rolled them in pink sugar crystals. I then glued them on the top of the fondant covered cake cones with royal icing. For the three towers in the middle of the cake I used different sized cake cones that I cut to be different sizes. I also used a dowels to secure these to the top of the cake. So they wouldn't fall over!
To add the detail I used buttercream to make all the vines and the border. I had some royal icing flowers I put on the vines. They were drop flowers. For the door and walkway I cut out a piece of fondant."

Hope this helps!

Yes, urooj--just the marshmallows and rice krispies. You might want to have a bit a melted butter on standy-by, just in case. As I said, though, I haven't made these, but this is what I have read in the other posts. I hope someone will correct me if I've mistated anything!

Thank you so much for your advice! It really helped. I will search for a good rice krispie treat recipe.