OUR MODUS OPERANDI. Hiding Pendulums Check out this video about how we make our Traci Sloshing Drink Pieces! How We Make Our Sloshing Pendulum Drink Pieces. We start our sloshing pendulum pieces with wood and tools. We cut out our shapes… carve around the shapes, add any special edges or features… stain, dye, and varnish… put it all together, and then our sloshing pendulum pieces are ready to be displayed! Available Sloshing Pendulum Pieces How We Make Our Other Pieces