LEGOS are sold in different packaging methods. I recently puchased several different colors and items to make some of my buildings from. with a little imagination and a lot of patience you would be surprised at what you can create with these little plastic blocks. I recently created a full community out of LEGOS. They sell them at the Dollar Tree 48 pcs. to a package and there only a buck each. They also carry the doors and windows. But check to make sure they have them. Another way of constructing buildings is with the white perforated board (!/4" thk.) in the Arts and Crafts dept.