Ok deets are:
circles - Amy Butler Love, supplied and cut by Jen (go and see what she made my Liam!)
sashing - Kona Cotton White supplied by aforementioned Jen.
binding - Lisette Lawn bought at Spotlight
back - Britten Haus from Ikea
We used this tutorial and then I did my own thing.
Thanks Jen for not only the fabric but for starting my new obsession!