What do brooklyn green contractors do on their day off?
Build igloos of course!
The trick to building a good igloo is to use deep cake pans or small storage boxes to make snow bricks. The other trick is as you slant the walls inwards be careful NOT to slant the bricks. The walls slant inwards but the bricks always stay flat.
But to be honest you don’t need bricks for small structures. It is easier to just pack the snow like you were making a mud castle.