For each sandwich cookie, spread 1/3 cup ice cream on bottom of 1 cookie; press craft stick in center of ice cream. Top with second cookie, bottom side down; gently press together. Press candy sprinkles into ice cream on edges. Wrap in plastic wrap; freeze 1 hour. Unwrap; decorate cookies with icing. Freeze until firm, about 2 hours. Rewrap in plastic wrap; store in freezer.