I took a whack at these on Mother's Day. Did half with pineapple slices, & half without. Here are my thoughts:
Highly recommend using regular sliced bacon, not thick cut. Regular cut made them much easier to construct. Also, the thick sliced bacon was just too much bacon / salt for my taste on the finished product. I did not expect to like the pineapple ones at all. Much to my surprise I actually enjoyed them more as the sweetness of the pineapple balanced out the saltiness of the bacon.
All in all, these turned out okay. They make quite the visual and the presentation can be quite the talker, but just not my favorite thing to eat. In hindsight I may have gotten caught up in the novelty of these, but Mama requested them after I showed her pics.