I am going to be making my first princess castle cake for my cousins daughters 3rd birthday in a couple of weeks. I have searched, read, watched youtube videos, and searched and read some more until I am seeing cross eyed on how to make the towers for the cake. I am wanting something lightweight because I will be transporting this cake a little ways from my home. I came across the video on youtube from Pink Cake Box and they were using styrofoam for the towers. Where can I find the styrofoam tubes they used? I have searched google and I emailed Pink Cake Box to ask where they got them but they havent emailed me back. Does anyone know where I can get them from? I cannot find them at any craft stores around here. Thanks for any help!

I made one last weekend and used RKT (rice krispy treats) for the towers and sugar cones for the tops. I made up a batch of rice krispy treats and, for lack of any better idea, used champagne glasses to form the tower shapes. Sprayed them with Pam, pushed in the RKT and let harden. They slid right out and were the perfect cylindrical shape with a bit of a dome at the top which fit the sugar cone exactly. Covered both pieces

 separately in fondant, then attached with white chocolate candy melts. (attempting to attach pic below).

That is cute! Making them with RKT is the next option for me if I cant find the styrofoam, or I might use pvc pipe, lol. Did you make the rkt recipe exactly like whats on the box or did you alter the recipe any?

I have used styrofoam cones for my Tangled cake and styrofoam tubes both bought at hobby lobby.   For the boy castle, I used Pringles cans and actually covered them in buttercream.........NOT fondant.  You could always add an  ice cream cone to the top to make it the girly type of turrets.

That is a awesome castle! I hope mine comes out looking as good as yalls ;) I actually just got a email back from a place that has cake dummies and they are going to cut the styrofoam cylinders the exact sizes I need, and the best part is they are pretty cheap! Thanks for the help I appreciate it!

I just mixed the cereal with some microwaved marshmallow fluff to get the RKT.

And maybe I'm weird, but I like all parts of the cake to be edible (that's why I didn't use the Wilton set or paper towel rolls, etc). My client told me that the towers were actually the kids favorite part and they all fought over who got to eat them :)