It is building challenge Friday.  I think it is the kids and my favorite.  Today their building challenge was to build a 2 wheel car that could travel on the floor.  They were given the following supplies: balloon, stick, bendable straw, straight straw, tape, rubber band, and 2 hard mints with a whole in the middle.  Check out how they did.  Congratulations to Riley, Laura, and Sofia on the first moving car.