I really enjoyed this project and love the finished product too. I completed 4 rows of each colour, so 68 rows altogether. I then added two single crochet rows in blue for the border. It is a great lap blanket and the monkeys have already tried it out.
I ordered the Special double knit by Stylecraft here, all 17 balls of it. It even comes in a special pack with all the colours that Lucy from Attic 24 used.