"Little ingenuity" refers to having a small or limited amount of creative and resourceful thinking in solving problems or coming up with new ideas. Full definition
Father James displays ethical strength but little ingenuity as he settles moral accounts with his flock and his suicidal daughter (Kelly Reilly). (ocregister.com)
little ingenuity none of it is a big deal at all. (edmunds.com)
With a little ingenuity and effort, you can show customers they are important at any time. (entrepreneur.com)