With 3 to 3 1/2-inch (7 to 8 cm) cookie cutters such as diamonds, heart or star, cut out dough shapes for birdhouses (or cut desired shapes from dough with knife). Use 1-inch (2.5 cm) canapé cutter or sharp knife to make "door" in bottom half of each. If desired, use drinking straw to make hole in top of cookie for hanging. Place 3-inches (7 cm) apart on ungreased baking sheet. Repeat with remaining dough.