I tried a pineapple cider that was terrible, but I'm going to try just the pineapple juice with good yeast and see what happens soon. I was inspired after having Maui Blanc, a pure pinapple wine from hawaii. Not amazing, but worth a shot. We actually had a forum on it.
Mzannie, who frequents the wine forum, has a recipe for 2 month pineapple wine that she insists should be consumed young (the wine, not the drinker). you'll find it here: