I really dislike Buddlejas (yes, that is the correct spelling) but there's no denying that they are the best butterfly plants going. Phlox are not so well known as nectar sources but today they were the only other plants in the garden to attract the butterflies.
When I was a child, I was given a large plastic model of a Peacock butterfly. It had a suction pad on the back and I stuck it to my book shelf. Can you still get them, I wonder?