My SIL is expecting their first DC next year and I would love to make them a crochet blanket for the baby.
They aren't going to find out the sex so it'll have to be neutral.
I'm thinking white/ cream, grey and yellow. But I feel like it needs another colour... Maybe turquoise, or something? 
It'll probably be some form of ripple stripe blanket as that's what I fancy making next and I'll probably go back to my tried and tested stylecraft special dk as there are so many colours and it wears well too!