We got a couple of pineapples in our most recent Bountiful Basket. When scrolling through Pinterest a while ago, I remembered seeing that you can grow another pineapple plant by just using the leaves of an eaten pineapple, so we decided to give it a shot. We mostly got our info from this website and this video. Hopefully we will see some growth soon, and I won't kill it like I do most plants. I'll try and keep you updated!
UPDATE 1/11/12: We've tried this with several different pineapples now. It is not as easy as the tutorials make it look. Or maybe we just have black thumbs at our house. Either way, it looks like growing a pineapple plant is not in the cards for us.