Preheat oven to 350°. Cook each pasta shape according to package. Drain and toss each shape with one of the sauces. Set aside in big bowls. Set out add-ins in separate bowls, and provide empty oven-safe bakers. Have each person fill a baker with their choice of pasta and top with favorite add-ins. Put bakers on a cookie sheet and bake in oven until cheese is bubbly, about 15 minutes.