Errata Note
There is an error in Rd 3 of the Willow Block pattern. The written pattern for the square misses 2tr into the last ch sp.

I used the 3mm hook to round 5, then 3.5mm for the rest of the square and the join, which is a dc (UK) surface join.
I used the smaller hook for the border to avoid ruffling.

At Rd 5 in the one colour squares I ss up the 5tr (UK) of the corner to the 3ch corner space and worked the round as written rather then break off the yarn.

Each square used 4g for first 5 rows and 7g for the remainder, so 11g per square in total.
I needed a full ball for the border.

I made 49 squares, 17 blue and 32 cream. It is a Christmas pressie for my SIL, but I am thinking of starting a small business selling some stuff so I took pics with my little PerPuntino tab before wrapping :)