Tiki Resort goes Pineapples for Fans
Pineapples, in particular, can normally be acquired by purchasing scheduled air drops or paying 99 Facebook Credits (nearly $10 USD) for a pack of fifty. Certain attractions (e.g. "Pagoda Pigout" also manufacture Pineapple Charms on the side, while others require Pineapples to build. The massive, "Pineapple Wonder" (pictured at top of post) can be bought for 100 Facebook Credits or a combination of 40 Pineapple Charms and 80,000 Coins.
Do note that each click on that link gets you one pineapple, so you're going to have to do it five separate times.