Sand Tower - a la Good, Good Whole Wheat Shreddies!

[Sumpter250]

Josh, just start practicing with the old cereal boxes. You will have fun building stuff and the buildings that don't come out can be thrown away and started over since the materials are free anyway!

They say "practice makes perfect"..........I don't know, I've yet to see a perfect doctor, and they are always practicing.
But!
Practice does develop skill. More importantly, technique, and knowledge of material, and what it will allow you to do with it. I'd give the above advice, from Russ, some serious consideration. After all, we're talking "free material".
In this photo of my first layout, the two foreground buildings, and the church in the background, were built from cardboard, and card stock, when I was 15.