Preheat oven to 350. combine flour, oats, soda, cinnamon, and salt; set aside. Cream butter; gradually add sugars, beating until light and fluffy. Add egg and vanilla; mix well. Alternate additions of dry ingredients and pumpkin mixing well after each addition. Stir in chocolate chips. For each cookie , drop 1/4 cup dough onto lightly greased cookie sheet; more dough to form stem. Bake 350. 20-25 minutes, until cookies are firm and lightly browned. Remove from cookie sheets; cool on racks. Decorate using icing or nuts. Yields about 32 cookies. Variation substitute 1 cup of raisins for cholate chips.