Double crochet spike stitch
Really effective. All you do is 3 rows of dc and then on your colour changing row you do 1dc in the row and 1dc in the stitch 2 or 1 row down depending how big you want your spikes and then repeat.
V stitch is a bit more lacy, I have used it on a cardigan front many moons ago but this one is going on the blanket.
So what does it look like? If I am honest, I really don't know what it is going to look like, it could go either way. It could be a random eclectic mix of patterns and colours or it could be a bit of a jumbled up mess - but I need to go a bit further yet before I decide.