I did a crazy quilt about five years ago. I started with a small (about one square inch worth) five-sided black piece. Five sides - think house - floor, two walls which slant outwards and a roof. Sew a small piece of something onto one side, trim one edge of that to make a straight edge to sew on the new piece. Keep adding all around the black in this fashion. Then just keep adding pieces around until it is as big as you like. As it gets bigger it may have more than five sides. Most of mine ended up having about eight sides. Add pieces to make it four sided and trim. I sashed it in black and won second place in audience choice.