Build a House out of an Unconventional Material

I asked my five year old son what he would use. At first he said, "Why do we need to build a house? We already have one." Then he said, "I know! I would build them out of the ABC blocks I have downstairs. My house would look like a pyramid with little windows so I could see when it was snowing." The more I think about it, the more I would like to live in his house.

*** Another prompt from the One Minute Writer***