I'm probably going to get in trouble (copyright or some such) for posting this, but I do love this Calvin & Hobbes Sunday strip:
I used to spend hours cutting up pieces of paper (which I usually neglected to clean up) to make little sculptures. They were usually fantasy princesses, dragons, knights in shining armor, etc, though I made the occasional castle. I even made a horse (for the knight) complete with saddle and bridle, all made out of paper. My mom kept a lot of them and it's a trip to look at them now. I was a weird kid, but I think it was inevitable I ended up as an architect.