Fold salami slices in quarters. Cut the ham and mortadella slices in half, fold and/or roll into bite sized parcels.
Slice pepperoni sticks into 1" pieces.
Slice roasted red pepper into ½-3/4" wide strips.
Drain olives and bocconcini, Cut provolone into 16 cubes
Alternating meats, cheeses, and olives, thread 1 piece of each ingredient: mini bocconcini, provolone cubes, red pepper slices, mushrooms, tomatoes, artichoke hearts, black olives, green olives, and each of the 4 meats - onto a bamboo skewer.
Repeat with remaining ingredients.
Serve immediately - garnished with parsley or basil, if desired - or cover and chill until ready to serve. Best when used within 2 days of assembling.