Pineapple baby blanket

I spent the weekend making loads of toy nets and the constant crocheting seemed to clear my head and allowed me to focus on what I wanted to make next.
And the winner is....
Pineapples!
Sneak peek!:

 

This is so awesome. I've never made crocheted pineapples before, but this was super easy. This was one of my mom's favorite type of stitches.
I found this pattern for a pineapple square in my handy dandy Harmony Guide to Crochet Stitches. It has 17 rounds, but I figured out how to just keep making the shells (called V-stitches in the book) to enlarge the square.
So far it's looks a bit like an oversized white doily, but I plan to correct that with some special touches. Here's a wider shot:

Not sure if I'm sticking with white or adding in some pink, but I'll probably try to figure out a way to work a ribbon in there somewhere. I can see this as a perfect blanket to wrap around baby at a baptism. I actually made my youngest's christening gown out of filet crochet. It took me forever, but it was gorgeous. This is a much faster project, but I think it still evokes an elegant feel ideal for a church ceremony.

My only question is how to make it lay flat. Does anyone out there have any suggestions? I used acrylic yarn. Pretty much the shell parts lays flat, but the pineapples and surrounding area want to puff up, as you can see in this pic: