I've been collecting Chick Tracts I find laying around, and my Holy Grail is finding a copy of the one about the satanic game of dungeons and dragons, titled Dark Dungeons. Unfortunately it's a niche subject and not included in their variety packs, you have to order it specifically, which means unless I find a very specific crank still caught up in the satanic panic there's a very low chance of ever finding it in the wild