This is what I have done so far. The first photo is how it was when I dragged it out of storage. the second is what it looks like today.
I have 6 skeins of Caron Simply soft brites. Teal, blue, purple, pink, yellow and lime. The centre patch is made using the Teal, the other five colours are used going around. I will carry on till I run out of yarn and use the Teal to finish it off. It is very bright but Maisey loves it so that is OK.