If you make a doily or anything out of red or blue crochet thread don't try to block it the conventional way. You have to iron it or it will be ruined. I know - I just finished making a beautiful red, white and blue doily and my husband dampened it to block it and the red and blue ran onto the white and ruined it! I spent a week making it and had to throw it away. I was so mad I stomped on it and ripped it to shreds. Yes, I threw a duck fit!