Flatten the gumdrops; cut into small leaf shapes and set aside. In a mixing bowl, cream peanut butter, butter, 1/2 cup sugar and brown sugar. Add egg, milk and vanilla; mix well. Combine the flour, baking soda and salt; add to the creamed mixture and mix well. Shape into 1 inch balls. Roll in remaining sugar; place on ungreased cookie sheets. Bake at 350 °F for 10 to 12 minutes or until lightly browned. Remove from the oven and immediately lightly press one peanut butter cup, cut side down, into each cookie to form a basket. Press a candy flower onto cookie so it appears as if a flower is coming out of the basket; press gumdrop leaves next to flowers. Cool on wire racks.