Some of the lovely ladies of Crochet Lover's Victoria on Ravelry have made some squares for the blanket (in addition to a couple of hats and toys as well - they are very generous!). I've personally completed three squares for the blanket so far.
Apparently the little boy's favourite colours are yellow and green, so everyone has been making squares in those colours.
I've made one of my 3-5-3-5-3 Squares
A center heart squareAnd a Mandala square. (I made this one on accident - I thought I was making a different square, and was already too far into it when I realised I'd grabbed the wrong pattern - oh well).
I've also finished my second January square (that Mandala pattern I don't care for.)
And this "two-tone" square pattern.
The center heart square is also one of February's patterns so I still need to make that in the blue and cream for myself now.