Last summer I had a special order (it was actually a barter with the photographer who did my boudoir session) for some adjustable headbands for newborn/toddler photography. I have used elastic headbands before but had never made them truly adjustable before.
So I took the challenge and used a combination of elastic lace and velcro to make these pretty little headbands. The amount of adjustability is based on how big the flower/embellishment is - it varies from 1-2in up to 3-4in.
The video shows how the adjustable part works. Its all hidden under the flower. I was really happy with how they turned out. And so was the client! ;-)