Sampling Collections

For my homepage and every single course I want to show a sample of testimonials from a collection on marketing pages but also let users see all the testimonials for a collection Otherwise we need to create two collections (Sample and Wall) and for me then I'll end up with 40 Collections and 40 Widgets. Also for product marketers they likely want to experiment: - What if I show a single testimonial - What I show a sample of testimonials (3) - What if I could always show the best ones (maybe from very well known community members) - What if I could randomize the sample