Thread a small chunk each of Black Forest ham, weisswurst or bratwurst, and slab bacon onto 12 small skewers. Bake on a foil-lined baking sheet at 450 degrees F until just starting to brown, about 10 minutes. Mix 3 tablespoons maple syrup with a pinch of cayenne; brush on both sides of the skewers and sprinkle generously with coarsely ground black pepper. Continue baking until the bacon is crisp, 7 to 9 more minutes. Brush with the remaining syrup mixture and sprinkle with more black pepper.