I used 2 skeins of Sugar N Cream "Over the Rainbow" and 1 skein of Sugar N Cream "White". The cute pattern was found via Ravelry by ~sarahndipities~.
The only trouble I ran into was at the beginning/end of each round. You couldn't really see it too badly on the rainbow part.
I could make sure that the front was very prominently noticeable. Or I came up with the idea of making this the front and hiding it with flowers.
It was risky, but I liked this solution the best. The birthday girl and my friend loved it and I got some compliments on my crocheting skills :)